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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]
Semgrep, Inc. (formerly r2c [3]) is a cybersecurity company based in San Francisco. The company develops the Semgrep AppSec Platform (a commercial offering for SAST , SCA , and secrets scanning) and actively maintains the open-source static code analysis tool semgrep OSS .
A regular expression (shortened as regex or regexp), [1] sometimes referred to as rational expression, [2] [3] is a sequence of characters that specifies a match pattern in text. Usually such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings, or for input validation.
AWK (/ ɔː k / [4]) is a domain-specific language designed for text processing and typically used as a data extraction and reporting tool. Like sed and grep, it is a filter, [4] and it is a standard feature of most Unix-like operating systems.
Utilities listed in POSIX.1-2017 This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS). These commands can be found on Unix operating systems and most Unix-like operating systems.
For example, the following GNU sed command embellishes the output of the make command by displaying lines containing words starting with "WARN" in reverse video and words starting with "ERR" in bright yellow on a dark red background (letter case is ignored). The representations of the codes are highlighted.
A single command or the first of multiple commands appears on the same line with the global command. ... Also regular expression is clearly there too. For the command list suffix, we are using a single p command . The p command is documented as print ( . , . )p The print command prints the addressed lines. `.' is left at the last line printed.
pgrep is a command-line utility initially written for use with the Solaris 7 operating system by Mike Shapiro.It has since been available in illumos and reimplemented for the Linux and BSDs (DragonFly BSD, FreeBSD, NetBSD, and OpenBSD).