Tag: Linux

/etc/group is a text file which defines the groups to which users belong under Linux and UNIX operating system. Under Unix / Linux multiple users can be categorized

Enabling /var/log/messages in Ubuntu Edit file /etc/rsyslog.d/50-default.conf and uncomment following lines. *.=info;*.=notice;*.=warn;\ auth,authpriv.none;\ cron,daemon.none;\ mail,news.none -/var/log/messages daemon.*;mail.*;\ news.err;\ *.=debug;*.=info;\ *.=notice;*.=warn |/dev/xconsole After that restart rsyslog: sudo restart rsyslog

sudo apt-get update sudo apt-get dist-upgrade

sh or Bourne Shell – the original shell still used on UNIX systems and in UNIX related environments. This is the basic shell, a small program with few

To format USB drive FAT format make shure that You looged as root and then type fdisk /dev/sda mkfs -t vfat /dev/sda1

Create New File – Shift-F4 Save File as – F12 Hide Panels (Show Console) – CTRL+O Search File – Ctrl-S

Command killall killall command kills all active processes. Syntax killall [options] Options view option kill command Description Command killall kills all active processes. Implied value send a signal

Command uptime Displays the time of continuous operation of the system. Syntax uptime Description uptime utility displays the current time, time of continuous operation of the system, the

Command top Displays a list of currently executing processes, ordered by the percentage use of CPU time. Syntax top [q] [d interval] Options q: requires top performance with

Command pstree Displays all running processes in a tree. Syntax pstree [options] [process_id] Options -a displays the command line arguments. -c does not compress the subtrees. -l displays