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kezdjen tanulni

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

Linux commands

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