netstat -lntu
-l = only services which are listening on some port -n = show port number, don’t try to resolve the service name -t = tcp ports -u = udp ports
lpstat -p -d
tar xvzf file.tar.gz
Where, x: This option tells tar to extract the files. v: The “v” stands for “verbose.” This option will list all of the files one by one in the archive. z: The z option is very important and tells the tar command to uncompress the file (gzip). f: This options tells tar that you are going to give it a file name to work with. from
wc options: -l counting lines, -c byte count, -m char count and -w for word count.
which [command]
cat