Linux crash

Editors

• nano
• vim

Directories

Change Directory

same dir

• cd .

next higher dir

• cd ..

to home dir

• cd ~

to last dir

• cd -

Listing

• ls
• ls -a
• ls -l
• ls -t
• ls -r
• ls -h
• ls -Q
• ls -S

Filehandling

Copy

regular

• cp dat1.txt dat2.txt

with subdirs

• cp -r dir1 dir2

Move

regular

• mv dat1.txt dat2.txt

with subdirs

• mv dir1 dir2

Delete

regular

• rm dat1

dirs

• rm -r dir1

Link

soft

• ln -s dat1 dat2

hard

• ln dat1 dat2

Userrights

Change Mode

oktal

• chmod 755 dat1

symbolik

• chmod u=rwx,g=rx,o=rx dat1

oktal recursiv

• chmod -R 755 dir1

symbolik recursiv

• chmod -R u=rwx,g=rx,o=rx dir1

Change User and/or Group

to User xinux

• chown xinux dat1

to User xinux and Group admins

• chown xinux:admins dat1

to Group admins

• chown :admins dat1

to Group admins

• chgrp admins dat1

Dir to User xinux

• chown -R xinux dir1