Saturday, October 1, 2011

My note of UNIX Commands

Find content in files
find ./ -name "*.c" | xargs grep TEXT

# Symbolic Link is very similar to what we know from Windows - a shortcut.
ln -s [full path to source directory] [target]

# Hardlink cannot be created for directories (folders).


The options which apply to the useradd command are:
-g (primary group assigned to the users)
-s starting program (shell)
-p password
-d home directory
-m (Create the user's home directory

useradd -gusers -s/bin/bash -pshutdown -d/home/shutdown -m shutdown
passwd shutdown
usermod -a -G sudo shutdown

Set Console Font
setfont /usr/share/consolefonts/Uni1-VGA8.psf.gz

tar zcvpf backup.tar.gz directory-name/
tar บนลีนุกซ์ สามารถระบุออปชั่น z เพื่อบีบขนาดของไฟล์ได้เลย

tar xvzf abc.tgz

$ sudo update-java-alternatives -s java-6-sun
$ JAVA_HOME="/usr/lib/jvm/java-6-sun"
$ export JAVA_HOME

Change console language in Debian
enter 'sudo dpkg-reconfigure locales' to set the default locale for the system environment

force check disk linux on the next reboot
sudo touch /forcefsck

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