Author: lc-root

vi Editor [Command] [How To]

Basic vi commands Command Description TERM = terminal_name export TERM Setting Terminal configuration tput init Initialize terminal as terminal_name vi filename Open the vi text editor to edit
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killall [Command]

Command killall killall command kills all active processes. Syntax killall [options] Options view option kill command Description Command killall kills all active processes. Implied value send a signal
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uptime [Command]

Command uptime Displays the time of continuous operation of the system. Syntax uptime Description uptime utility displays the current time, time of continuous operation of the system, the
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top [Command]

Command top Displays a list of currently executing processes, ordered by the percentage use of CPU time. Syntax top [q] [d interval] Options q: requires top performance with
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pstree [Command]

Command pstree Displays all running processes in a tree. Syntax pstree [options] [process_id] Options -a displays the command line arguments. -c does not compress the subtrees. -l displays
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ps [Command]

Command ps Displays the status of processes (programs) running in the system. Syntax ps [options] Options [notice]Note that unlike other commands ps command options do not have a
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kill [Command]

Command kill Kill command sends a signal to the process. Syntax kill [options] id_process Options -Nsignal sends a specified signal (where Nsignal – the number or name). -l
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free [Command]

Command free free command displays the number of free and used memory in the system. Syntax free [options] Options -b: displays the amount of memory in bytes. -k:
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du [Command]

Command du du command displays the amount of disk space occupied by files or directories. Syntax du [options] [directories_or_files] Options -a displays information about memory usage for all
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