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A 104-key PC US English keyboard layout with Print Scrn circled. Print Screen (often abbreviated Print Scrn, Prnt Scrn, Prnt Scr, Prt Scrn, Prt Scn, Prt Scr, Prt Sc, Pr Sc, or PS) is a key present on most PC keyboards. It is typically situated in the same section as the break key and scroll lock key. The print screen may share the same key as ...
Print a calendar Version 5 AT&T UNIX 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 ...
The magic SysRq key is a key combination understood by the Linux kernel, which allows the user to perform various low-level commands regardless of the system's state. It is often used to recover from freezes , or to reboot a computer without corrupting the filesystem . [ 1 ]
a.out is a file format used in older versions of Unix-like computer operating systems for executables, object code, and, in later systems, shared libraries.This is an abbreviated form of "assembler output", the filename of the output of Ken Thompson's PDP-7 assembler. [1]
The test command in Unix evaluates the expression parameter. In most recent shell implementations, it is a shell builtin, even though the external version still exists.In the second form of the command, the [ ] (brackets) must be surrounded by blank spaces (this is because [is a program and POSIX compatible shells require a space between the program name and its arguments).
A printing protocol is a protocol for communication between client devices (computers, mobile phones, tablets, etc.) and printers (or print servers).It allows clients to submit one or more print jobs to the printer or print server, and perform tasks such as querying the status of a printer, obtaining the status of print jobs, or cancelling individual print jobs.
Multics had a pwd command (which was a short name of the print_wdir command) [11] from which the Unix pwd command originated. [12] The command is a shell builtin in most Unix shells such as Bourne shell, ash, bash, ksh, and zsh. It can be implemented easily with the POSIX C functions getcwd() or getwd().
Scientific Linux (SL) is a discontinued Linux distribution produced by Fermilab, CERN, DESY and by ETH Zurich. It is a free and open-source operating system based on Red Hat Enterprise Linux. [3] This product is derived from the free and open-source software made available by Red Hat, but is not produced, maintained or supported by them.