Getting information in a terminal window

This is a series of useful commands you can enter at the shell prompt in a terminal window to obtain information about your system.

  • free    provides memory information: total, used and free.

  • df -k    provides the total, used and free space available in each file system, and the percentage of capacity used in each file system.

  • ps -aux    provides a list of the processes running in your system, including their PID (which can be used in kill pid to end a process).

  • tail  /var/log/messages    lists the messages in the log (similar to Event Viewer in NT). It requires root (or su) status.

  • top    another way to see memory, CPU use, processes running and their PIDs (press Control-C to end top).

  • ls -al    lists all files in a directory, their attributes and size.

  • more    display the content of a file, one screenful at a time.

  • pwd    displays pathname of current directory.

  • echo $HOME    displays the path of an user home directory

  • printenv   displays the values of the Environment variables like path, home directory,etc

  • quota    displays quotas for an user, if set up by the System Administrator.

  • uptime    displays how long the system has been up.

  • man xxxx    provides help on the xxxx command. Very technical descriptions are provided.

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Last Update: Thursday, June 24, 2003 | © 2002-2003 Kay Nix  ·  K-SeCuRiTy Timisoara, Romania