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The pcregrep command is an implementation of grep that uses Perl regular expression syntax. [17] Similar functionality can be invoked in the GNU version of grep with the -P flag. [18] Ports of grep (within Cygwin and GnuWin32, for example) also run under Microsoft Windows. Some versions of Windows feature the similar qgrep or findstr command. [19]
/V Prints only lines that do not contain a match. /N Prints the line number before each line that matches. /M Prints only the filename if a file contains a match.
He later added this capability to the Unix editor ed, which eventually led to the popular search tool grep's use of regular expressions ("grep" is a word derived from the command for regular expression searching in the ed editor: g/re/p meaning "Global search for Regular Expression and Print matching lines"). [15]
In computing, netstat is a command-line network utility that displays open network sockets, routing tables, and a number of network interface (network interface controller or software-defined network interface) and network protocol statistics.
/V Displays all lines NOT containing the specified string. /C Displays only the count of lines containing the string. /N Displays line numbers with the displayed lines. /I Ignores the case of characters when searching for the string. Note: If a pathname is not specified, FIND searches the text typed at the prompt or piped from another command.
System V gencat: Misc Mandatory Generate a formatted message catalog get: SCCS Optional (XSI) Get a version of an SCCS file PWB UNIX getconf: Misc Mandatory Get configuration values getopts: Shell programming Mandatory Parse utility options gettext: Misc Mandatory Retrieve text string from messages object grep: Misc Mandatory Search text for a ...
Using -0 for xargs deals with the problem, but many Unix utilities cannot use NUL as separator (e.g. head, tail, ls, echo, sed, tar-v, wc, which). But often people forget this and assume xargs is also line-oriented, which is not the case (per default xargs separates on newlines and blanks within lines, substrings with blanks must be single- or ...
Like sed and grep, it is a filter, [4] and it is a standard feature of most Unix-like operating systems. The AWK language is a data-driven scripting language consisting of a set of actions to be taken against streams of textual data – either run directly on files or used as part of a pipeline – for purposes of extracting or transforming ...