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It also includes the programs such as update-alternatives and start-stop-daemon. The install-info program used to be included as well, but was later removed [7] as it is now developed and distributed separately. [8] The Debian package "dpkg-dev" includes the numerous build tools described below.
Traditionally, the process names of a daemon end with the letter d, for clarification that the process is in fact a daemon, and for differentiation between a daemon and a normal computer program. For example, syslogd is a daemon that implements system logging facility, and sshd is a daemon that serves incoming SSH connections.
SMTP daemon. swapper Copies process regions to swap space in order to reclaim physical pages of memory for the kernel. Also called sched. syslogd: System logger process that collects various system messages. syncd Periodically keeps the file systems synchronized with system memory. systemd: Replacement of init, the Unix program which spawns all ...
A property list (plist) is a type of file that launchd uses for program configuration. When launchd scans a folder, or a job is submitted with launchctl, it reads a plist file that describes how the program is to be run. A list of often used keys follows below. All keys are optional unless otherwise noted.
C. C (programming language) C dynamic memory allocation; C file input/output; C syntax; C data types; C23 (C standard revision) Callback (computer programming) CIE 1931 color space; Coalesced hashing; Code injection; Comment (computer programming) Composite data type; Conditional (computer programming) Const (computer programming) Constant ...
Upstart is a discontinued event-based replacement for the traditional init daemon—the method by which several Unix-like computer operating systems perform tasks when the computer is started. It was written by Scott James Remnant , a former employee of Canonical Ltd.
systemd is the first daemon to start during booting and the last daemon to terminate during shutdown. The systemd daemon serves as the root of the user space's process tree; the first process (PID 1) has a special role on Unix systems, as it replaces the parent of a process when the original parent terminates. Therefore, the first process is ...
Ctrl-C (in older Unixes, DEL) sends an INT signal ("interrupt", SIGINT); by default, this causes the process to terminate. Ctrl-Z sends a TSTP signal ("terminal stop", SIGTSTP); by default, this causes the process to suspend execution. [4] Ctrl-\ sends a QUIT signal ; by default, this causes the process to terminate and dump core.