Linux Command

id
Function: print real and effective user and group IDs
Usage: id [OPTION]... [USERNAME]
killall
Function: Sends signals to terminate processes based on specified command names or criteria, allowing the user to selectively terminate processes in a more controlled manner.
Usage: killall [options] name ...
vim
Function: Vi IMproved, a programmers text editor
Usage: vim [options] -q [errorfile]
pkill
Function: look up or signal processes based on name and otherattributes
Usage: pkill [options] pattern
date
Function: Print or set the system date and time
Usage: date [-u|--utc|--universal] [MMDDhhmm[[CC]YY][.ss]]
pidof
Function: find the process ID of a running program.
Usage: pidof [-s] [-c] [-x] [-m] [-o omitpid] [-o omitpid..] program [program..]
netstat
Function: Print network connections, routing tables, interface statis-tics, masquerade connections, and multicast memberships
Usage: netstat {--route|-r} [address_family_options] [--extend|-e[--extend|-e]] [--verbose|-v] [--numeric|-n] [--numeric-hosts][--numeric-ports] [--numeric-ports] [--continuous|-c] [delay]
bc
Function: An arbitrary precision calculator language
Usage: bc [ -hlwsqv ] [long-options] [ file ... ]
tput
Function: initialize a terminal or query terminfo database
Usage: tput [-Ttype] longname
sudoedit
Function: execute a command as another user
Usage: sudoedit [-AknS] [-a type] [-C num] [-c class] [-g group] [-h host] [-p prompt] [-T timeout] [-u user] file ...
yes
Function: output a string repeatedly until killed
Usage: yes [STRING]...
kill
Function: terminate a process
Usage: kill [-s signal|-p] [--] pid...
talk
Function: talk to another user
Usage: talk address [terminal]
expr
Function: evaluate expressions
Usage: expr EXPRESSION
cat
Function: Concatenate files and print on the standard output
Usage: cat [OPTION]... [FILE]...