Linux Command Line Cheatsheet printable pdf download

Linux Command Line

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Cheatsheet

File Commands

System Commands

ls - List the content of the current directory

uname -a - Show system and kernel

ls -R - List the subdirectories recursively

head -n1 /etc/issue - Show distribution

ls -a - List all the content, including hidden files

mount - Show mounted filesystems

ls -l - List the content and its information

date - Show system date

pwd - Output the current directory that you are in

uptime - Show system uptime

cd folder1 – Change the working directory to folder1

whoami - Show your username

cd - Return to the $Home directory

w - Display who is online

cd .. - Go up a directory

man command - Show manual for command

cd - - Return to the previous directory

mount -o loop cdrom.iso /mnt/dir - Mount cdrom.iso at

/mnt/dir

cp source destination – Copy source to destination

cp -r source destination – Copy a folder recursively from

cat /proc/partitions - Show all partitions registered on the

source to destination

system

mv source destination - Move (or rename) a file from source to

grep MemTotal /proc/meminfo - Show RAM total seen by the

destination

system

rm file1 - Remove file1

grep "model name" /proc/cpuinfo - Show CPU(s) info

rm -f file1 - Remove file1 without prompt

lspci -tv - Show PCI info

rm -r folder - Remove a folder and its content recursively

lsusb -tv - Show USB info

!! - Repeat the last command

mkdir foldername – Create a new folder foldername

rmdir foldername – Remove an empty folder

exit – Log out of current session

file file1 – Show the file type of file1

cat file1 file2 – Concatenate file1 to file 2

File Searching Commands

cat > file1 – Concatenate standard input to file1

grep pattern files - Search for pattern in files

less file1 - View and paginate file1

grep -i - Case insensitive search

head file1 - Show first 10 lines of file1

grep -r - Recursive search

tail file1 - Show last 10 lines of file1

grep -v - Inverted search

chmod 777 file - Change file permission of file to 777

grep -o - Show matched part of file only

locate file1 - Find file1

chown user:group file - Change ownership of file to user and

group group

whereis command - Find binary/source /manual for command

which app – Locate a command for the app

ln -s source destination – Create a symbolic link from source to

destination

look string file1 - Display any lines in file1 which contain string

as a prefix.

File Encryption and Compression

find /dir/ -user name - Find files owned by name in dir

gpg -c file - Encrypt file

find /dir/ -mmin num - Find files modifed less than num

minutes ago in dir

gpg file.gpg - Decrypt file.gpg

find /dir/ -name name* - Find files starting with name in dir

tar -cf archive.tar foo bar - Create archive.tar from files foo

and bar

tar -xf archive.tar - Extract all files from archive.tar.

Linux Command Line Cheatsheet

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