bash-tutorial/tutorial/files_directories.org

#+options: toc:nil num:nil author:nil

* Files and directories

** Create empty file

Create "file.txt" with command ~touch~

: touch file.txt

Create a file redirecting the shell output using "~>~" operator

: echo I will put this text wthin a file > file2.txt


** List files

Use ~ls~ in the directory you want to explore

: ls

List with properties using options ~-l~ and ~-la~

: ls -l
: ls -la

List using wildcards

List all files ending in ".csv"

: ls *.csv

List all files containing the characters "moda" within name, e.g.,
"acomoda", "comoda.txt"...

: ls *moda*

Remove "x"

: rm x

Copy a file using "~cp~ source destination"

: cp /home/text.csv  /home/myuser/text.csv

Copy multiple files, directories or disk using "rsync" (source, destination).
The command accepts arguments:

- "-r" recursive
- "-v" verbose
- "-a" archive (keeps info about files)

: rsync -rav /home/user/Documents /run/media/user/disk/backup/

~rsync~ can be also used with selective copyng based on file type

: rsync /home/user/Desktop/*.jpg /home/user/Desktop/backupdata/

Create directory

: mkdir new_dir

Remove (unlink) a directory

Some arguments:

 * -r: recursively unlink
 * -v: verbose
 * -f: force

: rm -r new_dir

Remove a file

: rm file.txt

Space used by a directory

: du -hs /usr

Display directory

: pwd

Change directory you are working from terminal.

Go to the home of the user

: cd

Go one level up in the directory tree

: cd ..

Go to "Documents" directory

: cd /home/myuser/Documents