Linux Commands : 1 07/04/2013 Article Create symlink of file ln -sf <source file path>/<filename> <destination file path>/<filename> cat <destination file path>/<filename> Generate ssh key of user ssh-keygen -t rsa cat ~/.ssh/id_rsa.pub Password less auth from both server, add ssh keys of each other into authorized keys vi ~/.ssh/authorized_keys Switch user su - <username> Kill services kill -9 <process id> killall -e <process name> Check apache and mysql is running or not ps aux | grep httpd ps aux | grep mysql Retrieve file using http, https and ftp wget <http url> File count in folder <code cd <folder path> ls | wc -l Check system version cat /etc/redhat-release Categories: Linux About Author: