Some useful Commands for linux

Some useful  Commands for linux

Commands

• ls : show a directory listing
• df -h : show how much disk space is left
• du -csh myfolder : show how much space is in use by the folder myfolder
• cd : change directory
• cp -r : copy a file
• rm -r : delete a file
• mkdir : make a directory
• chmod : change the file permissions
• pwd : show current working directory
• whoami : show your user name
• hostname : show your host's name
• uptime : show the uptime of your host
• top : show the top CPU consuming processes

Hard drives

• hwinfo --storage-ctrl :discover your hard disk controller
• hwinfo --block :discover what disks you have
• hwinfo --partition :discover what partitions you have
• fdisk :divide your disk devices into partitions     (USE WITH CAUTION!!)

NetWorking

• hwinfo --netcard :find out your NIC's type and abilities
• ethtool :find out if a cable has been plugged in (link detection)
• ping :find out if a computer is reachable
• ifconfig :set your IP-address
• route :set your default gateway
• nmap :find out about ports information on a computer