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In computing, alias is a command in various command-line interpreters , which enables a replacement of a word by another string. [1] It is mainly used for abbreviating a system command, or for adding default arguments to a regularly used command.
Bash, short for Bourne-Again SHell, is a shell program and command language supported by the Free Software Foundation [7] and first developed for the GNU Project [8] by Brian Fox. [9]
JP Software command-line processors provide user-configurable colorization of file and directory names in directory listings based on their file extension and/or attributes through an optionally defined %COLORDIR% environment variable. For the Unix/Linux shells, this is a feature of the ls command and the terminal.
Displays how a name would be interpreted if used as a command ulimit: Misc Optional (XSI) Set or report file size limit umask: Misc Mandatory Get or set the file mode creation mask System III unalias: Misc Mandatory Remove alias definitions uname: Misc Mandatory Return system name PWB UNIX uncompress: Misc Optional (XSI) Expand compressed data ...
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]
The restricted shell is a Unix shell that restricts some of the capabilities available to an interactive user session, or to a shell script, running within it.It is intended to provide an additional layer of security, but is insufficient to allow execution of entirely untrusted software.
It is essentially the C shell with programmable command-line completion, command-line editing, and a few other features. Unlike the other common shells, functions cannot be defined in a tcsh script and the user must use aliases instead (as in csh).
visudo is a command-line utility that allows editing the sudo configuration file in a fail-safe manner. It prevents multiple simultaneous edits with locks and performs sanity and syntax checks . Sudoedit is a program that symlinks to the sudo binary. [ 28 ]