linux commands
ls - list everything in current dirrectory
cd directoryname - change directory to given directory
cp directorynameofcopied directorynamewheretocopy - copes a file or folder
mv directoryoffiletobemoved directrynameofdestinationtomove - moves a file
pwd - print current location
touch filename - create a file
cat > filename - createa a file name and write into it
| - pipe command, lets you combine commands
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The 'mv' (move) command can also be used for renaming directories. Use the below-given format:
mv directoryname newdirectoryname
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Linux Commands (case-sensitive)
reboot ==> reboots system
man ==> gives you instruction of the command - Ex:
"man reboot"
mikdir ==> Creates directory(folder)
cd ==> Change directory
Ls ==> List directory content
pwd ==> Print name of the current working directory. It
gives you the exact location; Ex: /home/Andy/Desktop
ll ==> Long list format
ls-la ==> Prints files and hidden file
clear ==> Clear screen
cd.. ==> Goes to the parent file (not the root file)
cd/ ==> Goes to the parent root file
cd~ ==> Goes to the home of the user file
grep ==> Prints a line matching a pattern
df-h ==> Prints the disk space usage top ==> Displays
linux tasks (like task manager)
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To view a file, use the command -
cat filename
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Linux Commands (Case Sensitive):
Basic:
pwd ==> print the name of current directory || Ex: pwd
whoami ==> print the current user || Ex: whoami
cd [directoryName] ==> enter a directory || Ex: cd Music
cd .. ==> go back to the parent directory || Ex: cd ..
cp [file] ==> copy file || Ex: cp music.mp3
ls ==> list all items in the current folder || Ex: ls
clear ==> clears the terminal || Ex: clear
mkdir [foldername] ==> makes folder with the specified name || Ex: mkdir Songs
rmdir [foldername] ==> removes the specified folder || Ex: rmdir Songs
echo "text" ==> outputs to stdout || Ex: echo "Hi"
For sorting files:
mv [file] [newname]==> rename a file or folder || Ex: mv exe txt
cat [filename] ==> reads the specified file || Ex: cat cmds.txt
tac [filename] ==> reads the specified file in reverse || Ex: tac cmds.txt
tail [file, file] ==> reads first 10 lines of the files || Ex: tail cmds.txt
zip [file, file] ==> compresses the specified files || Ex: zip files
vi [file] ==> edit file in the terminal || Ex: vi cmds.txt
gedit [file] ==> edits the file in text editor || Ex: gedit cm.txt
nano [file] ==> edit file in nano editor || Ex: nano cmds.txt
tar ==> same as bzip2 || Ex: tar file
bzip2 -z / -d ==> compress and decompress files with || Ex: bzip2 -z cmds
the extension "bz2" respectively
gzip ==> same as bzip2 but compresses files || Ex: gzip file
with a gz extension.
Getting help:
man [command] ==> show the manual of the command || Ex: ls man
[command] --help ==> similar to man but ouputs in terminal || Ex: pwd --help
apropos [word] ==> search for the word in description || Ex: aprpos list
of all commands
More advanced:
reboot ==> reboot the system || Ex: reboot
which [command] ==> ouputs the location of the command || Ex: which ls
su [username] ==> impersonate as the specified user || Ex: su root
exit ==> exit the current user or the terminal || Ex: exit
shutdown -P +min ==> shutdowns the system || Ex: shutdown -P
Networking:
ifconfig ==> lists all the network interfaces on || Ex: ifconfig
your machine
netstat ==> displays network connections for TCP, || Ex: netstat
routing tables, and a number of
network interface and network
protocol statistic
For listing hardware:
lscpu ==> list CPU architecture information || Ex: lscpu
lsusb ==> list information about usbs || Ex: lsusb
lsblk ==> list block devices || Ex: lsblk
lsof ==> list opened files || Ex: lsof
lspci ==> list PCI devices || Ex: lscpi
System Administration:
users ==> shows names of users logged in || Ex: users
adduser ==> adds another user || Ex: adduser David
deluser ==> deletes a user || Ex: deluser David
passwd ==> change the password of current user || Ex: passwd
uptime ==> shows how long the system has been || Ex: uptime
running, number logged on users and
the system load averages
uname -a ==> show all the information of the OS || Ex: uname -a
ps(Process Status) ==> displays currently-running processes || Ex: ps
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ls ls - Lists files in current directory
ls -alF - List in long format
cd - change directory
cd tempdir - Change directory to tempdir
cd.. - Move back one directory
mkdir - Make a directory
rmdir - Remove directory(Must be empty)
cp - Copy File into Directory
rm - Remove or Delete File
rm *.tmp - Remove all file
mv - Move or rename files
more - Look at file, one page at a time
lpr - Send file to printer
man - Online help about command
passwd - Change password
gzip - Compress file
grep<str><files> - Find which files contain certain word
who - Lists who is logged on your machine
history - Lists command history
date - Print out current date
whoami - returns your username
pwd - tell where currently you are
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