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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.
cat is a standard Unix utility that reads files sequentially, writing them to standard output. The name is derived from its function to (con) cat enate files (from Latin catenare , "to chain"). [ 1 ] [ 2 ] It has been ported to a number of operating systems.
cat: Filesystem Mandatory Concatenate and print files PDP-7 UNIX cd: Filesystem Mandatory Change the working directory Version 6 AT&T UNIX cflow: C programming Optional (XSI) Generate a C-language call graph: System V chgrp: Filesystem Mandatory Change the file group ownership PWB UNIX chmod: Filesystem Mandatory Change the file modes ...
Grep: search repository for lines matching a pattern Record : include only some changes to a file in a commit and not others Note : Commands in green rectangles that are not surrounded by [square brackets] are at an interactive command-line prompt.
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.
This is a list of interface bit rates, is a measure of information transfer rates, or digital bandwidth capacity, at which digital interfaces in a computer or network can communicate over various kinds of buses and channels.
Cat may actually be regarded as a 2-category with natural transformations serving as 2-morphisms. The initial object of Cat is the empty category 0, which is the category of no objects and no morphisms. [1] The terminal object is the terminal category or trivial category 1 with a single object and morphism. [2]
nl is part of the X/Open Portability Guide since issue 2 of 1987. It was inherited into the first version of POSIX.1 and the Single Unix Specification. [1] It first appeared in System V release 2. [2] The version of nl bundled in GNU coreutils was written by Scott Bartram and David MacKenzie. [3]