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An alias will last for the life of the shell session. Regularly used aliases can be set from the shell's rc file (such as .bashrc) so that they will be available upon the start of the corresponding shell session. The alias commands may either be written in the config file directly or sourced from a separate file.
Return user's terminal name Version 1 AT&T UNIX type: Misc Optional (XSI) 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 ...
Aliasing can occur in any language that can refer to one location in memory with more than one name (for example, with pointers).This is a common problem with functions that accept pointer arguments, and their tolerance (or the lack thereof) for aliasing must be carefully documented, particularly for functions that perform complex manipulations on memory areas passed to them.
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. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.
Alias argument selectors; the ability to define an alias to take arguments supplied to it and apply them to the commands that it refers to. Tcsh is the only shell that provides this feature (in lieu of functions).
The language, including the use of a reversed keyword to mark the end of a block, was influenced by ALGOL 68. [7] Traditionally, the Bourne shell program name is sh and its path in the Unix file system hierarchy is /bin/sh. But a number of compatible work-alikes are also available with various improvements and additional features.
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Syntax defects: were generally simple but unnecessary inconsistencies in the definition of the language. For example, the set, setenv and alias commands all did basically the same thing, namely, associate a name with a string or set of words. But all three had slight but unnecessary differences.