52 C Shell Commands And Their Function!

Ready to try your hands on the C Shell? These commands may come in handy!

The C shell (csh), which is the improved version of tcsh, is a Unix shell (on majority of platforms), which was created by Bill Joy when he was graduating in University of California, Berkeley in the late 1970s. Introduced in the 2BSD release of the BSD Unix system, the C shell has gained popularity and is now spread far and wide. So, if you have decided to try your hands on this popular shell, here are 52 commands and their functions to help you through.

Please note that Shell commands differ in usage and syntax from one type of shell to another and the commands mentioned here are listed for general references. You can always refer to the man command to see how the command will work in a particular shell.

#	Marks a command.
breaksw	Use this to Break from a switch command the running commandresumes after the endsw command.
fg	Brings a job in the foreground.
chdir	Changes directory, same as cd.
cd	Changes directory.
nice	Changes the priority of commands run in the shell.
case	Conditionally performs a command
goto	Continues execution after the specified label.
alias	Create an alias.
unsetenv	Deletes variables of environment.
unset	Deletes variables of shell.
unhash	Disables the internal hash table.
hashstat	Displays the statistics of hash table.
set	Displays or set the value of a shell variable.
@	Displays or set the values of all the shell variables.
history	Displays the history list.
dirs	Displays the list of directories in a stack.
time	Displays the time used to execute commands.
eval	Evaluates a command.
pushd	Exchanges the top two elements of the directory stack.
if	Executes a command if condition met.
exec	Executes the command in the current shell.
while ...end	Executes the commands while matching end statements repeatedly.
exit	Exits the shell.
nohup	Ignores the hangup signal.
jobs	Lists active jobs.
login	Logs on.
logout	Logs out.
notify	Notifies the user about changes in job status.
popd	Pops the top directory off the directory stack and changes to the new top directory.
rehash	Re-computes the hash table from the contents of the directories in the path shell variable.
source	Reads commands from a script.
unalias	Removes command alias.
unlimit	Removes limitations on system Resource.
repeat	Repeats the execution of a command.
continue	Resume the next iteration of a loop or continues after loop
break	Resumes execution after the loop.
kill	Sends a signal to a process. term (terminate) is the default signal.
bg	Sends the job to background.
setenv	Sets environment variables.
limit	Sets or list system resource limits.
shift	Shifts shell arguments.
umask	Shows or set file permissions.
foreach	Specifies a looping control statement and execute a sequence of commands until reaching an end command.
default	Specifies the default case in a switch.
switch	Starts a switch.
stop	Stops a background job.
suspend	Stops the current shell.
onintr	Tells the shell what to do on interrupt.
wait	Waits for background jobs to complete.
glob	Writes arguments to the standard output of the shell, like the echo command, but without the new line.
echo	Writes arguments to the standard output of the shell.