Unix commands reference card
Abbreviations used
C-x
cmd
d
f
n
[]
hold down control key and press x
a unix command such as ls, cd, etc
directory
filename
number
optional argument
Caution
1
l
the number 1 (read carefully)
the letter l (read carefully)
Unix Command
man
cat f
more f
cat f1 f2 > f3
ls [d]
ls -l [d]
cp f1 f2
mv f1 f2
rm f
mkdir d
rmdir d
Description
Unix online help (man ls, man cd, man cat, etc)
List contents of file
List file contents by screen
Concatenates f1 & f2 into f3
List files in directory
(ls –a) (ls > f)
List files in detail (list all files) (capture listing in file f )
(cp f1 d) (cp d1 d2) Copy file f1 into f2 (or f1 into directory d) (or d1 into d2)
(mv f1 d) (mv d1 d2) Rename file f1 as f2 (or move f1 into directory d) (or d1 into d2)
Delete (remove) file f
Create new directory d
Remove directory d --must be empty
pwd
cd d
cd ..
Print working directory-- where you are
Change to directory d (cd - go to last directory)
go up one directory
C-c
C-s
C-q
exit
Interrupt processes
Stop screen scrolling
Resume screen output
Exit (the proper way to log out of Unix--may need to repeat 2x
history
!n
Display recent commands
Redo recent command n
grep 'ptn' f
diff f1 f2
head f
tail f
Outputs lines that match ptn
Lists file differences
Output beginning of f
Output end of f
g++ f.cpp -o f
compile program f.cpp into executable f
PICO EDITOR
pico [f]
C-g
C-x
C-o
C-k
C-u
Open pico editor [on optional file f]
Get help when you are in pico
Exit
??? Save file
cut text
un cut text