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Useful Unix Commands

Page history last edited by PBworks 14 years, 11 months ago
cd change directory
pushd flip between two different directories
cp copy
mv move
rm remove and erase
ls list what is in the directory
ls -l list what is in directory with more detail
pwd find out where you were
mkdir make new directory
chown change owner
chown -R change owner of everything in specified directory
su switch user
chgrp change group ownership
chgrp -R change group ownership of everything in specified directory
diff compare two files
Ctrl + Z suspends program
fg reactivates program/brings suspended back into foreground
ls -alt lists permission of all files in a directory
chmod changes permissions depending on what numbers you put in using chmod ### filename command. See table below for permission numbers.
wc count number of lines, words, and characters in a (text) file

 

# Permission
7 full
6 read and write
5 read and execute
4 read only
3 write and execute
2 write only
1 execute only
0 none


 

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