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Frage		Antworten
man Lernen beginnen		command for help > man grep
ls Lernen beginnen		List directory contents -l long listing (ls -l),-al (ls -al) Listing With Hidden Files
grep Lernen beginnen		Find text in a file grep PATTERN [FILE], grep failed auth. log
cd Lernen beginnen		Change current directory Forward slashes instead of backward, cd /var/log
shutdown sudo shutdown -r 2 Lernen beginnen		Safely turn off the computer in software sudo shutdown 2 (turn off in 2min), -r restart, -c cancel or ctrl+c
pwd Lernen beginnen		Displays the current working directory path Useful when changing directories often
passwd Lernen beginnen		Change a user account password sudo passwd [username]
mv mv SOURCE DEST Lernen beginnen		Move a file mv first. txt second. txt
cp cp first. txt second. txt Lernen beginnen		Copy a file cp SOURCE DEST
rm Lernen beginnen		Remove files or directories Does not remove directories by default, -r (removes directory)
mkdir mkdir DIRECTORY Lernen beginnen		Make a directory mkdir notes
chmod r=read, w=write, x=execute Lernen beginnen		Change mode of a file system object chmod mode FILE, chmod 744 script. sh
chown Lernen beginnen		Change file owner and group sudo chown [OWNER: GROUP] file, sudo chown professor script. sh
iwconfig Lernen beginnen		View or change wireless network configuration
ifconfig Lernen beginnen		View or configure a network interface and IP Slowly being replaced by ip (ip address)
ps Lernen beginnen		View the current processes ps -e \| more (View all processes)
su / sudo Lernen beginnen		Some command require elevated rights There are some things normal users can’t do
su Lernen beginnen		Become super user You continue to be that user until you exit
sudo Lernen beginnen		Execute a command as the super user Only that command executes as the super user
apt-get Lernen beginnen		Advanced Packaging Tool (Install, update, remove) sudo apt-get install wireshark
vi Lernen beginnen		Visual mode editor Full screen editing with copy, paste, and more
dd Lernen beginnen		Backup and restore an entire partition dd if=<source file name> of=<target file name> [Options]
Creating a disk image Lernen beginnen		dd if=/dev/sda of=/tmp/sda-image. img
Restoring from an image Lernen beginnen		dd if=/tmp/sda-image. img of=/dev/sda
killall / kill <pid> Lernen beginnen		Closing programs sudo killall firefox
xkill Lernen beginnen		Graphical kill kill an app with one click

Linux commands

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