Tag: Commands

Command ldd ldd command displays the names of shared libraries required for execution. Syntax ldd program Options -v displays the version number of ldd. -V displays the version number of the dynamic linker (ld.so), …

Command info info command displays online help for any command Linux. Syntax info command Options -d add the directory to the list of directories in which files are being explored. -f file_info specifies the …

Command passwd Changes the password. Syntax passwd Description The passwd command changes your password. It asks for old password, and then the new password. If you are a privileged user, you can change the …

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 the file filename a Add text after …

Create New File – Shift-F4 Save File as – F12 Hide Panels (Show Console) – CTRL+O Search File – Ctrl-S

Command killall killall command kills all active processes. Syntax killall Options view option kill command Description Command killall kills all active processes. Implied value send a signal equal to 9 (signal destruction).

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 number of users in the system and …

Command top Displays a list of currently executing processes, ordered by the percentage use of CPU time. Syntax top Options q: requires top performance with the highest possible priority (for this you should …

Command pstree Displays all running processes in a tree. Syntax pstree Options -a displays the command line arguments. -c does not compress the subtrees. -l displays a long line. -n sorts the processes …

Command ps Displays the status of processes (programs) running in the system. Syntax ps Options Note that unlike other commands ps command options do not have a prefix “-“. a display processes of other …