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The cron command-line utility is a job scheduler on Unix-like operating systems. Users who set up and maintain software environments use cron to schedule jobs [ 1 ] (commands or shell scripts ), also known as cron jobs , [ 2 ] [ 3 ] to run periodically at fixed times, dates, or intervals. [ 4 ]
Command-line argument parsing is the process of analyzing and handling command-line input provided to a program.
Shell, the standard command language interpreter Version 7 AT&T UNIX (in earlier versions, sh was either the Thompson shell or the PWB shell) sleep: Shell programming Mandatory Suspend execution for an interval Version 4 AT&T UNIX sort: Text processing Mandatory Sort, merge, or sequence check text files Version 1 AT&T UNIX split: Misc Mandatory
Yacc (Yet Another Compiler-Compiler) is a computer program for the Unix operating system developed by Stephen C. Johnson.It is a lookahead left-to-right rightmost derivation (LALR) parser generator, generating a LALR parser (the part of a compiler that tries to make syntactic sense of the source code) based on a formal grammar, written in a notation similar to Backus–Naur form (BNF). [1]
In computing, ver (short for version) is a command in various command-line interpreters such as COMMAND.COM, cmd.exe and 4DOS/4NT. It prints the name and version of the operating system, the command shell, or in some implementations the version of other commands. It is roughly equivalent to the Unix command uname.
In computing, Verbose mode is an option available in many computer operating systems and programming languages that provides additional details as to what the computer is doing and what drivers and software it is loading during startup or in programming it would produce detailed output for diagnostic purposes thus makes a program easier to debug.
Called regularly by cron, sadc does the monitoring and stores its measurements to files in the /var/log/sa/ folder. The sar client can be used to explore this data. System Activity Report ( sar ) is a Unix System V -derived system monitor command used to report on various system loads, including CPU activity, memory/paging, interrupts, device ...
webcron is the term for a time-based job scheduler hosted on a web server.The name derives its roots from the phrase web server and the Unix daemon cron.A webcron solution [buzzword] enables users to schedule jobs to run within the web server environment on a web host that does not offer a shell account or other means of scheduling jobs.