Changes

  cp         copies or backsup a file

  cp         copies or backsup a file

  rm         removes or deletes a file

  rm         removes or deletes a file

  ps -ax|grep <process> outputs processes running <process>

  ps -aux|grep <process> outputs processes running <process>

  ps -AH         report process status

  ps -AH         report process status

  top         shows processes

  top         shows processes

  htop                    shows processes (more versatile than top)

  htop                    shows processes (more versatile than top)

  iptraf         shows network info

  iptraf         shows network info

  mc -d                  show midnight commander to navigate through system easily

  mc -d                  show midnight commander (cli file browser) to navigate through system easily

  cat /proc/mdstat shows software raid

  cat /proc/mdstat shows software raid

  host -t mx aol.com shows the mx records for aol.com

  host -t mx aol.com shows the mx records for aol.com

  grep -r "casesensitivesearch" * finds all documents containing the criteria in a dir

  grep -r "casesensitivesearch" * finds all documents containing the criteria in a dir

  tail -f /var/log/<LOGFILE> realtime viewing of your log file

  tail -f /var/log/<LOGFILE> realtime viewing of your log file

  hdparm -t /dev/mdx (where x is 0,1,2,etc) shows software raid performance

  hdparm -Tt /dev/mdx (where x is 0,1,2,etc) shows software raid performance

  mdadm --detail /dev/mdx (where x is 0,1,2,etc) gives raid info

  mdadm --detail /dev/mdx (where x is 0,1,2,etc) gives raid info

  tar -czvf foo.tar.gz foo                              creates a tar/zip file of a directory

  tar -czvf foo.tar.gz foo                              creates a tar/zip file of a directory

  tar -xvzf foo.tar.gz                                  untar/unzip a tar/zip file

  tar -xvzf foo.tar.gz                                  untar/unzip a tar/zip file

  scp -P <ssh_portnumber> foo.tar.gz <other_server_ipaddress>:/opt    transfers file to another server

  scp -P <ssh_portnumber> foo.tar.gz <user>@<other_server_ipaddress>:/opt    transfers file to another server in /opt directory

  rsync --progress -te "ssh -p <ssh_portnumber>" foo <other_server_ipaddress>:/opt    transfers file to another server

  rsync --progress -te "ssh -p <ssh_portnumber>" foo <other_server_ipaddress>:/opt    transfers file to another server

  sed -i s/foo/fee/g <FILENAMEORPATHTODIR>  replaces foo with fee

  sed -i s/foo/fee/g <FILENAMEORPATHTODIR>  replaces foo with fee