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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]
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.
Computes and checks SHA-1/SHA-2 message digests shuf: generate random permutations sort: sort lines of text files split: Splits a file into pieces sum: Checksums and counts the blocks in a file tac: Concatenates and prints files in reverse order line by line tail: Outputs the last part of files tr: Translates or deletes characters tsort ...
GNOME Console is a terminal emulator for the GNOME Desktop Environment. It originated as a terminal emulator specifically for the Phosh mobile interface, which needed an adaptive terminal emulator. [11] Since GNOME version 42 it has been a part of the default app set for GNOME, replacing GNOME Terminal. [12] [13]
tip is a Unix utility for establishing a terminal connection to a remote system via a modem. [1] It is commonly associated with BSD Unix, as well as other UNIX operating systems such as Sun's Solaris. It was originally included with 4.2BSD.
A pipeline of three program processes run on a text terminal In Unix-like computer operating systems , a pipeline is a mechanism for inter-process communication using message passing. A pipeline is a set of processes chained together by their standard streams , so that the output text of each process ( stdout ) is passed directly as input ...
In the case of an interactive shell, that is usually associated with the input device of a terminal (or pseudo terminal) which is ultimately linked to a user's keyboard. On POSIX systems, the file descriptor for standard input is 0 (zero); the POSIX <unistd.h> definition is STDIN_FILENO ; the corresponding C <stdio.h> abstraction is provided ...
Output of dmesg viewed with grep. The output of dmesg can amount to many complete screens. For this reason, this output is normally reviewed using standard text-manipulation tools such as more, tail, less or grep. [6] Size of the dmesg buffer is limited and the output is often captured in a permanent system logfile via a logging daemon, such as ...