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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]
xargs (short for "extended arguments") [1] is a command on Unix and most Unix-like operating systems used to build and execute commands from standard input.It converts input from standard input into arguments to a command.
For example, $ objdump -D -M intel file.bin | grep main.: -A20 This performs disassembly on the file «file.bin», with the assembly code shown in Intel syntax.We then redirect it to grep, which searches the main function and displays 20 lines of its code.
REs are part of the language core library using PCRE built-in and an optional wrapper for (C code) ICU is available. Lua: Lua.org: MIT License: Uses simplified, limited dialect; can be bound to more powerful library, like PCRE or an alternative parser like LPeg. Mathematica: Wolfram: Proprietary.NET: MSDN: MIT License [Note 2] [Note 3] Nim: nim ...
The command sends the specified lines to the standard output device. [5] It is similar to the find command. However, while the find command supports UTF-16, findstr does not. On the other hand, findstr supports regular expressions, which find does not.
The DFA can be constructed explicitly and then run on the resulting input string one symbol at a time. Constructing the DFA for a regular expression of size m has the time and memory cost of O(2 m), but it can be run on a string of size n in time O(n). Note that the size of the expression is the size after abbreviations, such as numeric ...
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).
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.