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The regular expression to compare. See StringRegExp for pattern definition characters. replace: The text to replace the regular expression matching text with. To insert matched group text, \0 - \9 (or $0 - $9) can be used as back-references. (See remarks) count [optional] The number of times to execute the replacement in the string. The default ...
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Oct 31, 2012 · Been up for 30+ hours.. i’m so tired and not thinking correctly. All i’m doing is replacing each char in the string with an asterisk. Is there an easier way, or better way? What i have works but i feel that maybe a regex isn’t necessary. var word = "Chowder"; // Normally dynamic but for this sake, static. word = word.replace(/./g ...
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The change routine allows for inputting a regular expression, a maximum number of times to replace, and an old string, and outputs a new string. Both the SAS (RX) and Perl (PRX) routines allow changing a string in place.
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Java String replaceAll() method finds all occurrences of sequence of characters matching a regular expression and replaces them with the replacement string. At the end of call, a new string is returned by the function replaceAll() in Java.
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Parameters. If search and replace are arrays, then str_replace() takes a value from each array and uses them to search and replace on subject.If replace has fewer values than search, then an empty string is used for the rest of replacement values.
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Feb 11, 2019 · Regular expressions are a generalized way to match patterns with sequences of characters. They define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. “find and replace” like operations.
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Here Mudassar Ahmed Khan has explained with an example, how to use Regular Expression (Regex) to allow only Numbers (Digits) and Special characters in JavaScript and jQuery. TAGs: JavaScript, jQuery, Regular Expressions
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Regular Expression; The replace input box support case preserving, you can turn it on by clicking the Preserve Case (AB) button. Multiline support and Find Widget resizing. You can search multiple line text by pasting the text into the Find input box and Replace input box. Pressing Ctrl+Enter inserts a new line in the input box.
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native regex_replace(Regex:pattern, string[], maxLen, const replace[], flags Perform a regular expression search and replace. An optional parameter, flags, allows you to specify options on how...
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In a similar way, GNU Screen is installed becase I still like to use it, so feel free to also skip it or replace it with another thing. Install DaemonTools to start the Asterisk PBX as a service It is highly recommended that you manage your asterisk installations with daemontools.
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# replace words in a text that match key_strings in a dictionary with the given value_string # Python's regular expression module re is used here # tested with Python24 vegaseat 07oct2005 import re def multiwordReplace(text, wordDic): """ take a text and replace words that match a key in a dictionary with the associated value, return the changed text """ rc = re.compile('|'.join(map(re.escape ...

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Parameters. If search and replace are arrays, then str_replace() takes a value from each array and uses them to search and replace on subject.If replace has fewer values than search, then an empty string is used for the rest of replacement values. Jan 06, 2021 · The match function matches the Python RegEx pattern to the string with optional flags. Syntax: re.match(pattern, string, flags=0) Where ‘pattern’ is a regular expression to be matched, and the second parameter is a Python String that will be searched to match the pattern at the starting of the string.


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( ) group the regular expressions within and apply the match to the set. Some examples of the more commonly used regular expressions are: regular . expression matches. cat the string cat.at any occurrence of a letter, followed by at, such as cat, rat, mat, bat, fat, hat. xy*z any occurrence of an x, followed by zero or more y's, followed by a z.

  1. I wanted to split a string on a certain character (asterisk), but only if it wasn't escaped (by a preceding backslash). Thus, I should ensure an even number of backslashes before any asterisk meant as a splitter. Look-behind in a regular expression wouldn't work since the length of the preceding backslash sequence can't be fixed.
  2. Asterisk Replace. Comments. Post Posting Guidelines Formatting - Now. Top Regular Expressions. Match string not containing string Check if a string only contains numbers In a regex ‘[*]’ designates a character class, containing the character ‘*’. In other words you’ve told it to match any filename that has an asterisk in it. To match a string consisting of square brackets and all the characters in between, the regex would look like: ‘\[.+\]’
  3. They are specified in the NormalizingRules/Replace elements. The character sequence to replace is specified in the input attribute of the NormalizingRules/Replace element. The character sequence to insert is specified in the output attribute of the element. The asterisk (*) and question mark (?) are not treated as wildcard characters.
  4. Basically I'm trying to replace a system that has 8 phones with three phone lines. It's all about 15 years old, so they want something all new with all the features. Asterisk (and FreePBX) seem to be the best thing to use. I already have service with VOIP.ms for other uses, and I'd like to continue using it with Asterisk. It's cheap and easy. A regular expression pattern is formed by a sequence of characters. Regular expression operations look sequentially for matches between the characters of the pattern and the characters in the target sequence: In principle, each character in the pattern is matched against the corresponding character in the target sequence, one by one.
  5. TypeScript - String replace() - This method finds a match between a regular expression and a string, and Argument Details. regexp − A RegExp object. The match is replaced by the return value of...
  6. Jun 08, 2020 · Hi All, I need help with removal of asterisk and brackets from my dataset. My dataset which includes * at the end of few values in a particular column such as ABC Imports* . It also includes some values within brackets like Imports (ABC). I am trying to remove only * and only brackets in these values. I tried str_replace, str_remove and even gsub, however, it doesn't work . Example of str ...
  7. As its name suggests, it checks the result that Asterisk returns whenever we call an AGI command. At the end of the file, we have our closing PHP tag. Don’t place any whitespace after the closing PHP tag, as it can confuse the AGI interface.
  8. Pros of VBA Replace Function. We can replace multiple words or sentences in a single shot. There is no limit of words or text what we cannot replace with. Syntax of Replace in VBA is as easy as using SumIf function in excel. VBA Replace as shown in example-1 is the easiest way to apply. Things to Remember
  9. java.util.regex.PatternSyntaxException: Dangling meta character '?' near index 0 String "contains" equivalent - But should look for case-in-sensitive string How to replace character *, using .replaceAll wildcard: Asterisks match any character(s) e.g. /path/*/ template: Curly brace tokens match any character(s) e.g. /path/{token}/ symbolic: Ruby-style symbols with leading colons match any character(s) e.g. /path/:token/ regexp: Convert into a true RegExp Object e.g. ^\/path\/$ modifiers is a string containing one (or none) of any of the ...
  10. Been up for 30+ hours.. i'm so tired and not thinking correctly. All i'm doing is replacing each char in Is there an easier way, or better way? What i have works but i feel that maybe a regex isn't necessary.Feb 26, 2020 · Description. The Oracle RPAD function is used to padding the right side of a string with a specific set of characters. This function is useful for formatting the output of a query.
  11. longest wildcard name starting with an asterisk, e.g. “*.example.org” longest wildcard name ending with an asterisk, e.g. “mail.*” first matching regular expression (in order of appearance in a configuration file) Wildcard names. A wildcard name may contain an asterisk only on the name’s start or end, and only on a dot border.
  12. We are now ready to start writing regular expressions! B. Practice some regex basics. Look at the regular expression box in Regex101. Notice that the regular expression starts with a slash and ends with a slash. You type the regular expression between the slashes. The simplest possible regular expression is a single character. If you want to replace the string that matches the regular expression instead of a perfect match, use the sub In this tutorial, we have seen how to replace a string in Python using regular expressions.

 

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Use a left curly bracket paired with a right curly bracket to denote a sub-expression within the complete regular expression. You may make and denote multiple sub-expressions within the complete regular expression. You may refer to such sub-expressions by number if you create Replacement Expressions for Replace operations. This denotation of a ...

Regex. The Regex tool provides flexible full-text search functions using regular expressions.To use this tool, first load one or more texts, then enter your search terms (or regular expressions) in the box provided, one on each line, select any desired options as described below, and click "Run". Parameters. If search and replace are arrays, then str_replace() takes a value from each array and uses them to search and replace on subject.If replace has fewer values than search, then an empty string is used for the rest of replacement values. Regular Expressions Primer . About this Primer. The Regular Expressions Primer is a tutorial for those completely new to regular expressions. To familiarize you with regular expressions, this primer starts with the simple building blocks of the syntax and through examples, builds to construct expressions useful for solving real every-day problems including searching for and replacing text. Chapter 1: Regular Expressions. We begin our exploration of coding with regular expressions. 1 Sometimes referred to as “regex”, regular expressions are a way of representing patterns of characters using predefined rules. Think of regular expressions as a faster, more powerful version of “Find & Replace”.

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Replace an asterisk (*) using Perl regular expression. Ask Question Asked 12 years ago. ... Search and replace in bash using regular expressions. Hot Network Questions The regular expression matches single characters (. ) that follow the beginning of the character vector (^) or a period (\.) and any whitespace (\s*) . The replace expression calls the upper function for the currently matching character ( $0 ).

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Tcl 8.1 now handles advanced regular expressions (REs). Previous regular expression handling is almost unchanged except that clumsy handling of escapes like has been much improved, and a few escapes that were previously legal (but useless) now won't work. Note that a few advanced features aren't useful yet but are ready for future Tcl releases. Similarly, the regex cat matches cat in About cats and dogs. This regular expression consists of a series of three literal characters. This is like saying to the regex engine: find a c, immediately followed by an a, immediately followed by a t. Note that regex engines are case sensitive by default. The asterisk matches zero or more of the previous expression. In this example, you are matching ENG\ followed by one or more of any character. In the replacement, \1 refers to whatever the first subexpression matched. Assuming the CIFS user ENG\jones, the replacement evaluates to jones; that is, the portion of the name following ENG\. Aug 18, 2009 · ^Regular Expressions is one of those tools that every developer should have in their toolbox. You can do your job without regular expressions, but knowing when and how to use them will make you a much more efficient and marketable developer. The real power of using regular expressions with replace comes from the fact that we can refer to matched groups in the replacement string. For example, say we have a big string containing the names of people, one name per line, in the format Lastname, Firstname . E.g., asterisks are just literal asterisks within a code block. This means it’s also easy to use Markdown to write about Markdown’s own syntax. Horizontal Rules. You can produce a horizontal rule tag (<hr />) by placing three or more hyphens, asterisks, or underscores on a line by themselves. If you wish, you may use spaces between the ... Nov 28, 2020 · Perl6::Rules, which back-ports some of the Perl 6 regular expression syntax to Perl 5. Regexp::Extended, which extends regular expressions in various ways, some of which seem to conflict with Perl 5.010. SEE ALSO. Regexp::Parsertron, which uses Marpa::R2 to parse the regexp, and Tree for navigation. regex replace system. Uploaded by. BujarKlaiqi. Description: Regex replace system. Replace with: nothing, just leave it blank Note that #links# is followed by a period and asterisk .* which will select...Unfortunately, it is often underused by people new to regular expressions, because lookaround is a So if you have a regex in which a lookahead is followed by another piece of regex, or a lookbehind is...This macro replaces all single-line comments of the type /* this is a comment */ with // this is a comment. Note some important things about this regular expression. First of all, the * (asterisk) character is a special character in regular expressions, so it has to be escaped by putting a \ (backslash) before it. Also, there are two groupings ... Dec 01, 2010 · RegExp object. VB Script is providing RegExp object for defining Regular expressions, It provides simple support for defining regular expressions. Regular Expression Object Properties and Methods: Properties: a) Global Property. b) IgnoreCase Property. c) Pattern Property. Methods: a) Execute Method. b) Replace Method. c) Test Method

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asterisks; regular-expression; ... A regular expression to match all Emoji-only symbols as per the Unicode Standard. ... A replacement and faster alternative to ... Regular expressions help button. This button opens a short regular expression syntax reference for the selected regular expression engine. This button is subdued unless the regular expressions checkbox is checked. Find This button starts the find in files search. Regex.Replace function has a more powerful version. We must create a MatchEvaluator instance, which is a delegate pointer to a function. UpperFirst Please look at the UpperFirst function. Parameters. If search and replace are arrays, then str_replace() takes a value from each array and uses them to search and replace on subject.If replace has fewer values than search, then an empty string is used for the rest of replacement values. Parameters. regex: regular expression. replacement: replacement sequence of characters. Returns. replaced string. Java String replaceAll() example: replace character. Let's see an example to replace all the occurrences of a single character. This article demonstrates how to use regular expressions and RegEx class (System.Text.RegularExpressions namespace) to build the find and replace functionality found in most of the text editors and word processors. The functionalities like whole word search or case sensitive/insensitive search can be implemented much easier using Regular ... Apr 11, 2018 · Regex: Square parentheses,[], and the asterisk, * The square parentheses and asterisk. We can match a group of characters or digits using the square parentheses. Regular expressions, also called regex, is a syntax or rather a language to search, extract and manipulate specific string patterns from a larger text. In python, it is implemented in the re module. You will first get introduced to the 5 main features of the re module and then see how to create common regex in python. As far as you put on the 'RegEx' switch the *does not mean 'any textstring with any length' but it is a counter that means 'the preceeding expression should be there zero, one or more times'. where the dot is a placeholder for any character and the asterisk means zero, one or more occurances of 'any character'. Jul 16, 2006 · The asterisk between these 2 strings means 0 or more occurences of any character except a new line character (CR or LF). The characters [ and ] are regular expression characters, but in this regular expression it should be interpreted as normal characters. So the must be escaped with the ^ character. Perl regex tutorial: non-greedy expressions. Have you ever built a complex Perl-style regular expression, only to find that it matches much more data than you anticipated? If you've ever found yourself pulling your hair out trying to build the perfect regular expression to match the least amount of data possible, then non-greedy Perl regex are what you need. Dec 21, 2001 · regexp_replace: Match a regular expression in a string and replace it with something else. regexp_split: Splits a string into substrings, using the regular expression as the delimiter. TraceSet_regexp: Enable tracing for regexp routines.

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Related Questions. Regex that allow numbers,question mark and asteriks. asterisk and vb net make a call. regex pattern : allow number,string, hypen, slash only. How to build that regex.Regular Expression to . Character classes. any character except newline \w \d \s: word, digit, whitespace 2. What is the Python Regular Expression (Regex)? Essentially, a Python regular expression is a sequence of characters, that defines a search pattern. We can then use this pattern in a string-searching algorithm to “find” or “find and replace” on strings. You would’ve seen this feature in Microsoft Word as well. Google Code Search supports regular expressions. Of course, the search target for this topic search engine is reduced to source code only. It is worth to mention that some Google search keywords can partially replace regular expressions. For example, if you want to search any two-word variation of "search TERM", you can use the wildcard operator. HOWEVER, it's not obvious how to do so using Regular Expressions. I thought I could use the match parameters m and n; the documentation states: m -- expression is assumed to have multiple lines, where ^ is the start of a line and $ is the end of a line, regardless of the position of those characters in expression. Explanation of Regex and replacement string ([0-9]+)\. Options: Case insensitive; ^$ match at line breaks. Match the regex below and capture its match into backreference number 1 ([0-9]+) Match a single character in the range between “0” and “9” [0-9]+ Between one and unlimited times, as many times as possible, giving back as needed ...

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A regex search-and-replace can find all your datelines and change them to the European form, so that you don’t alienate your European colleagues with your ugly American dates. In the dateline regex above, you will see that there are three sets of parentheses, one for the month, one for the day, and one for the year. May 30, 2012 · [06:39] !inittab [06:39] Upstart is meant to replace the old Sys V Init system with an event-driven init model. For more information please see: ... Nov 28, 2020 · Perl6::Rules, which back-ports some of the Perl 6 regular expression syntax to Perl 5. Regexp::Extended, which extends regular expressions in various ways, some of which seem to conflict with Perl 5.010. SEE ALSO. Regexp::Parsertron, which uses Marpa::R2 to parse the regexp, and Tree for navigation.

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Regexp (regular expression) meta-characters The asterisk * matches any number of repeats of the character string or regexp preceding it, including zero. "1133*" matches 11 + one or more 3's + possibly other characters: 113, 1133, 111312, and so forth. diff -urN mutt-0.91.2/ChangeLog mutt-0.93/ChangeLog --- mutt-0.91.2/ChangeLog Sat Jun 27 00:28:04 1998 +++ mutt-0.93/ChangeLog Fri Jul 10 11:49:42 1998 @@ -1307,3 +1307,624 @@ the case where a date rolled over to the previous year when selecting by number of months in the past +Changes since 0.91 +----- + +- fixed bug in rfc822_parse_adrlist() where it would segfault on a bad address + which ...

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4.1. Validate Email Addresses Problem You have a form on your website or a dialog box in your application that asks the user for an email address. You want to … - Selection from Regular Expressions Cookbook, 2nd Edition [Book] -replace works with regular expressions.A period is the meta charachter for “any charachter” and the star/asterisk (*) is the modifier meaning 0 or any number of occurances of the charachter or meta charachter or group right before this meta charachter. The third version of the regex (which adds support for XRegExp, PCRE, and Ruby 1.9) works a bit differently. It uses a plus (one or more) instead of an asterisk (zero or more) quantifier, and explicitly allows matching zero characters only if the matching process has reached the end of the string. The Regex.Replace(String, String, MatchEvaluator, RegexOptions) method is useful for replacing a regular expression match in if any of the following conditions is trueRegEx Allowing Number Only Match an MD5 hash Escape one or more asterisks (\*+) Checks wheter the given number starts with a given number Match a bitcoin address Strip non-digits Namespace Prefix Replace Path

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Open the Replace dialog ( CTRL + H) Select the Regular expression search mode. Preferably, uncheck the Wrap around option. SEARCH : (?s-i).*UNTIL THIS.*?\R|.*\R\K.*AFTER THIS.* REPLACE : Leave EMPTY. Click, one time, on the Replace All button; You should obtain the wanted result, below : Line 5 ----- Line 6 ----- Line 7 ----- Line 8 ----- Line 9 ----- Apr 06, 2018 · Regex to Find Where Data is Any Length and First Character has a Value from A to Z Similar to text queries, if we want to return the rows that begin with an A through Z character, then we’ll use the % sign and run a similar query as query two, except we’ll add a percent sign to return any row where the first character is from A to ... In the above regex example the character class "[[:alnum:]]" is used along with the metacharacter "^",which specifies to match the begining of the string, since the string has the number "1" in the beginning its matched. Aug 18, 2009 · ^Regular Expressions is one of those tools that every developer should have in their toolbox. You can do your job without regular expressions, but knowing when and how to use them will make you a much more efficient and marketable developer. For example, you could toggle a list prefixed with asterisks or minus signs inside the current paragraph by hitting '*ip. Here, '* is an operator and ip is the text-object on which it works. And do the same thing for a list prefixed with numbers across the next 10 lines by hitting '#10j . Using this regular expression, ColdFusion detects the two occurrences of "is" as well as the two occurrences of "the", replaces them with an asterisk enclosed in spaces, and returns the following string: There * coffee in * kitchen You interpret the regular expression [ ]+([A-Za-z]+)[ ]+\1 as follows: Regex.Replace function has a more powerful version. We must create a MatchEvaluator instance, which is a delegate pointer to a function. UpperFirst Please look at the UpperFirst function. Hi all, I wish to extract certain string based on fixed pattern of the input String I am providing and for this I am using Matches activity of Uipath. The problem I am facing is while extracting data from multiple lines. My Input String looks like below: 28 - Country - Germany (DE) 83 - Location - F 709, Ludwigshafen, Germany 448 - Building - F 709 449 - Floor - EG 450 - Room - 3 461 - Remark ...

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These regular expressions find and fix common misspellings and grammatical errors. The primary advantage of RegExTypoFix over other possible spellchecking engines and approaches is accuracy and the return of only one possible replacement. The rules below are developed to give as few false positives as possible. I wanted to split a string on a certain character (asterisk), but only if it wasn't escaped (by a preceding backslash). Thus, I should ensure an even number of backslashes before any asterisk meant as a splitter. Look-behind in a regular expression wouldn't work since the length of the preceding backslash sequence can't be fixed.

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How-to: Regular Expressions. Use -match, -notmatch or -replace to identify string patterns. More complex patterns can be matched by adding a regular expression. RegEx characters: ^. [ ] - g G? + * p P w W s S d D $ Match exact characters anywhere in the original string: PS C:> 'Ziggy stardust' -match 'iggy' True. Match multiple characters

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Dec 24, 2020 · The syntax of regular expression patterns that can be used in TestComplete may slightly differ, since the regular expression engines used in TestComplete are different. In the aqString.StrMatches , Find and some other methods, TestComplete uses its own non-native regular expressions. Hi all, I wish to extract certain string based on fixed pattern of the input String I am providing and for this I am using Matches activity of Uipath. The problem I am facing is while extracting data from multiple lines. My Input String looks like below: 28 - Country - Germany (DE) 83 - Location - F 709, Ludwigshafen, Germany 448 - Building - F 709 449 - Floor - EG 450 - Room - 3 461 - Remark ... # replace words in a text that match key_strings in a dictionary with the given value_string # Python's regular expression module re is used here # tested with Python24 vegaseat 07oct2005 import re def multiwordReplace(text, wordDic): """ take a text and replace words that match a key in a dictionary with the associated value, return the changed text """ rc = re.compile('|'.join(map(re.escape ... Regular Expressions Primer . About this Primer. The Regular Expressions Primer is a tutorial for those completely new to regular expressions. To familiarize you with regular expressions, this primer starts with the simple building blocks of the syntax and through examples, builds to construct expressions useful for solving real every-day problems including searching for and replacing text.

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At the same time, Perl and Python wizards will find many of their favorite features: full regular expression support, tight integration with the underlying operating system, convenient shortcuts, and dynamic evaluation. Ruby is easy to learn. Everyday tasks are simple to code, and once you've done them, they are easy to maintain and grow. Because XML syntax uses some characters for tags and attributes it is not possible to directly use those characters inside XML tags or attribute values. Aug 25, 2020 · In the above example, I have added one more value to the replace method. I have given an integer 1 indicating that only one instance of that substring should be replaced. Replacing using sub() method from regular expression. Python has a built-in regular expression module. This module provides various methods to find patterns and whatnot. This free regular expression tester lets you test your regular expressions against any entry of your choice and clearly highlights all matches. It is JavaScript based and uses XRegExp library for enhanced features. Consult the regular expression documentation or the regular expression solutions to common problems section of this page for examples. Replace each occurrence of pattern/regex in the Series/Index. Equivalent to str.replace() or re.sub(), depending on the regex value. String can be a character sequence or regular expression.Aug 18, 2019 · The RegEx.Replace method replaces all occurrences of a character pattern defined by a regular expression with a specified replacement character string. The RegEx.Matches method searches an input string for all occurrences of a regular expression and returns all the successful matches as if Match were called numerous times. Mar 11, 2020 · A regular expression or regex is a pattern that matches a set of strings. A pattern consists of operators, constructs literal characters, and meta-characters, which have special meaning. GNU grep supports three regular expression syntaxes, Basic, Extended, and Perl-compatible. The pattern within the brackets of a regular expression defines a character set that is used to match a single character. For example, the regular expression "[ A-Za-z] " specifies to match any single uppercase or lowercase letter. In the character set, a hyphen indicates a range of characters, for example [A-Z] will match any one capital letter. The syntax for the REPLACE function in Microsoft Excel is: Replace ( string1, find, replacement, [start, [count, [compare]]] ) Parameters or Arguments string1 The string to replace a sequence of characters with another set of characters. find The string that will be searched for in string1. replacement It will replace find in string1. start ... Suppose you want to see the init file, too. Now you can use an asterisk, because you want to match any number of characters between the inv and the jig: $ ls inv*jig.c inv1jig.c inv2jig.c inv3jig.c invinitjig.c. The asterisk actually means "zero or more characters," so if a file named invjig.c existed, it would be shown, too.