ⓘ Free online encyclopedia. Did you know? page 352

Hash (Unix)

When the user gives a command, the shell searches for the command in the path specified in the PATH environmental variable and stores the location in the hash. This command can be used to search for the command given. The command is built into th ...


The ipcrm command will mark System V interprocess communication API kernel entities for removal, deferred until the last connected process detaches. System V IPC kernel entities are: Message queues Semaphore arrays Shared memory interprocess comm ...


The ipcs command will list System V InterProcess Communication Systems API kernel entities to stdout. System V IPC kernel entities are: Semaphore arrays Message queues Shared memory segments On Linux, it is provided by the util-linux package.


mv is a Unix command that moves one or more files or directories from one place to another. If both filenames are on the same filesystem, this results in a simple file rename; otherwise the file content is copied to the new location and the old f ...


nohup is a POSIX command to ignore the HUP signal. The HUP signal is, by convention, the way a terminal warns dependent processes of logout. Output that would normally go to the terminal goes to a file called nohup.out if it has not already been ...

Od (Unix)

od is a program for displaying data in various human-readable output formats. The name is an acronym for "octal dump" since it defaults to printing in the octal data format.

Pr (Unix)

pr is a command used to paginate or columnate files for printing. It can also be used to compare two files side by side, as an alternative to diff. It is a required program in a POSIX-compliant environment and has been implemented by GNU as part ...


The tsort program is a command line utility on Unix-like platforms, that performs a topological sort on its input. As of 2017, it is part of the POSIX.1 standard.


uname is a computer program in Unix and Unix-like computer operating systems that prints the name, version and other details about the current machine and the operating system running on it.

Encyclopedic dictionary

Free and no ads
no need to download or install

Pino - logical board game which is based on tactics and strategy. In general this is a remix of chess, checkers and corners. The game develops imagination, concentration, teaches how to solve tasks, plan their own actions and of course to think logically. It does not matter how much pieces you have, the main thing is how they are placement!

online intellectual game →