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Checksums (IEEE Ethernet CRC-32) and count the bytes in a file. Supersedes other *sum utilities with -a option from version 9.0. comm: Compares two sorted files line by line csplit: Splits a file into sections determined by context lines cut: Removes sections from each line of files expand: Converts tabs to spaces fmt: Simple optimal text ...
In computing, cmp is a command-line utility on Unix and Unix-like operating systems that compares two files of any type and writes the results to the standard output.By default, cmp is silent if the files are the same; if they differ, the byte and line number at which the first difference occurred is reported.
Line, word and byte or character count Version 1 AT&T UNIX what: SCCS: Optional (XSI) Identify SCCS files PWB UNIX who: System administration Optional (XSI) Display who is on the system Version 1 AT&T UNIX write: Misc Mandatory Write to another user's terminal Version 1 AT&T UNIX xargs: Shell programming Mandatory Construct argument lists and ...
The output with -P consists of one line of information for each specified file system. These lines are formatted as follows: <fs name> <total space> <space used> <space free> <percentage used> <fs root> In the following list, all quantities expressed in 512-byte units (1024-byte when -k is specified) will be rounded up to the next higher unit.
wc (short for word count) is a command in Unix, Plan 9, Inferno, and Unix-like operating systems.The program reads either standard input or a list of computer files and generates one or more of the following statistics: newline count, word count, and byte count.
UNIX Style, or cat -v Considered Harmful - A paper by Rob Pike on proper Unix command design using cat as an example. cat(1) original manual page in the First Edition of Unix: concatenate and write files – GNU Coreutils reference: concatenate and print files – OpenBSD General Commands Manual
The number of lines printed may be changed with a command line option. The following example shows the first 20 lines of filename: head -n 20 filename. This displays the first 5 lines of all files starting with foo: head -n 5 foo* Most versions [citation needed] allow omitting n and instead directly specifying the number: -5.
A Unix shell is a command-line interpreter or shell that provides a command line user interface for Unix-like operating systems. The shell is both an interactive command language and a scripting language, and is used by the operating system to control the execution of the system using shell scripts. [2]