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Linux Command Line
version 1.4
Last modified date: 2009-07-03
Created Date: 2008-01-06
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Linux Command Line: Monitoring and debugging

View the commands list divided into arguments
Previous Argument      Next Argument
Command Description
# free -m displays status of RAM in megabytes   [man]
# kill -9 process_id force closure of the process and finish it   [man]
# kill -1 process_id force a process to reload configuration   [man]
# last reboot show history reboot   [man]
# lsmod display kernel loaded   [man]
# lsof -p process_id display a list of files opened by processes   [man]
# lsof /home/user1 displays a list of open files in a given path system   [man]
# ps -eafw displays linux tasks   [man]
# ps -e -o pid,args --forest displays linux tasks in a hierarchical mode   [man]
# pstree Shows a tree system processes   [man]
# smartctl -A /dev/hda monitoring reliability of a hard-disk through SMART   [man]
# smartctl -i /dev/hda check if SMART is active on a hard-disk   [man]
# strace -c ls >/dev/null display system calls made and received by a process   [man]
# strace -f -e open ls >/dev/null display library calls   [man]
# tail /var/log/dmesg show events inherent to the process of booting kernel   [man]
# tail /var/log/messages show system events   [man]
# top display linux tasks using most cpu   [man]
# watch -n1 'cat /proc/interrupts' display interrupts in real-time   [man]
Previous Argument      Next Argument
Commands by Argument
System information - Shutdown, Restart and Logout of a system - Files and Directory - File search - Mounting a Filesystem - Disk Space - Users and Groups - Permits on Files - Special Attributes on files - Archives and compressed files - RPM Packages ( Fedora, Red Hat and like) - YUM packages tool (Fedora, RedHat and alike) - DEB packages (Debian, Ubuntu and like) - APT packages tool (Debian, Ubuntu and alike) - View file content - Text Manipulation - Character set and Format file conversion - Filesystem Analysis - Format a Filesystem - Filesystem SWAP - Backup - CDROM - Networking (LAN / WiFi) - Microsoft Windows networks (samba) - IPTABLES (firewall) - Monitoring and debugging - Other useful commands - Pacman packages tool (Arch, Frugalware and alike) -

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