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Updated 2024-12-16
GNU/Linux terminal commands
Usual commands.
 
Terminal Terminal

man

Offers information about commands or files.
 
What manual page do you want?
For example, try 'man man'.

man man

Information about command man,

man rm

about command rm,

man fstab

about file /etc/fstab.

cd name

Change the current directory. Example:

cd /home/

Change the current directory to /home/.

ls

ls /usr/bin/

Display a list with files from the current directory, or from another directory.

rm name

rm -rf name

Delete a file or a directory.

touch name

Create file name.

mkdir name

Create directory name.

rmdir name

Delete empty directory name.

chmod 755 name

Change permissions for access/writing/execution of file name; 755 - executable file; 644 - file can not be executed.

cp name1 name2

cp -Rv name1 name2

Copy file or directory name1 in name2.

mv name1 name2

Move file or directory name1 in name2. Works like cp, but the initial file or directory disappears.

mount name1 name2

Mount a file system for accessing. Examples:

mount /dev/sda1 /usbfs

Directory /usbfs must be created first and su might be needed, along with its password.

mount /media/cdrom

File /etc/fstab must specify the file system associated with /media/cdrom.

umount name

Unmount a file system.

grep text name

Search for a series of characters in file name.

grep -ri text *

Search for text in all present files, recursively (-r) and without considering large or small letters (-i).

find name -name "*text*"

Search in the directory name, for files or directories which contain text in their name.

tar -cf name.tar name

Store files from the directory name in archive name.tar.

tar -xvf name.tar

Extract the files from the archive.

gzip name.tar

gzip -dv name.tar.gz

bzip2 name.tar

bzip2 -dv name.tar.gz

Compression and extraction of archives.

ln -s /usr/local/lib/... /usr/lib/...

Create a symbolic link between 2 files. Useful for the case in which an executable file doesn't find a library file.

chown -R user directory

chgrp -R group directory

Change the user or group of a directory. Might need su first.

cat name

cat name >> file

Display the contents of a file in the terminal or saving it into a file.

ps -A|more

List all the processes that function.

kill -9 #

killall -9 name

Finish process with number # or processes with name name.
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