Shell commands

killSends a signal to a process. term (terminate) is the default signal.

limit

Sets or list system resource limits.loginLogs on.logoutLogs out.niceChanges the priority of commands run in the shell.nohupIgnores the hangup signal.

notify

Notifies the user about changes in job status.onintrTells the shell what to do on interrupt.popdPops the top directory off the directory stack and changes to the new top directory.pushdExchanges the top two elements of the directory stack.rehashRe-computes the hash table of the contents of the directories in the path shell variable.

repeat

Repeats the execution of a command.setDisplays or set the value of a shell variable.setenvSets environment variables.shiftShifts shell arguments.sourceReads commands from a script.

stop

Stops a background job.suspendStops the current shell.switchStarts a switch.timeDisplays the time used to execute commands.umaskShows or set file permissions.

unalias

Removes command alias.unhashDisables the internal hash table.unlimitRemoves limitations on system Resource.unsetDeletes shell variables.unsetenvDeletes environment variables.waitWaits for background jobs to complete.

while …end

Executes the commands between the while and matching end statements repeatedly.@Displays or set the values of all the shell variables.