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grep is a command-line utility for searching plaintext datasets for lines that match a regular expression. Its name comes from the ed command g/re/p (global regular expression search and print), which has the same effect.
The name is a combination of semantic and grep, referring to semgrep being a text search command-line utility that is aware of source code semantics. [ 5 ] Services
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]
These flags are specified in the POSIX standard for find. [6] A common extension is the -P flag, for explicitly disabling symlink following. [7] [8] At least one path must precede the expression. find is capable of interpreting wildcards internally and commands must be quoted carefully in order to control shell globbing.
This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems. GNU Core Utilities include basic file, shell and text manipulation utilities. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.
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).
ldc.i4.6: Push 6 onto the stack as int32. Base instruction 0x1D ldc.i4.7: Push 7 onto the stack as int32. Base instruction 0x1E ldc.i4.8: Push 8 onto the stack as int32. Base instruction 0x15 ldc.i4.m1: Push -1 onto the stack as int32. Base instruction 0x15 ldc.i4.M1: Push -1 onto the stack as int32 (alias for ldc.i4.m1). Base instruction 0x1F
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.