Linux O.S. ( 20 Sep. 2012 )
To check any command’s full manual man commande name To check system’s memory free To check free disk space in Kb df To check free disk space in Mb df –m To check free disk space in Gb df -h To see all mount points df To check memory in Mb free –m To check memory in Gb free -g To check any command’s full manual man command’s name To check any command’s info info command’s name Enter first letter of any command & press tab button twice then press y it will show all commands starting with given letter To exit particular command