cs211 unix commands

basic unix commands and functions

cat <file>

prints contents of file to command window

cd <directory>

goes into whatever file

gcc main.c -o a

compiles program

.a./out

runs program

cp <file> <file2>

copies contents of file onto file2 and of file also stays intact

history

lists history of all commands issued at system prompt including failed/noncommands

ls

lists the files and subdirectories in a directory

ls -F

lists the difference between files and directories — indicating directories as directoryname/

ls -l

lists files with status/detail info

ls -lt

lists file info in long format (with details) sorted from most recently modified to least recently modified

ls -a

ists all files in directory including dot files

cd ..

goes out one level to parent directory

‘file name’

if file name or directory name has space, use single quotes around it so its seen as one word

mkdir <directory>

makes directory

mv <file> <file2>

moves file to file2 and deletes file1 (now the og contents of file2 don’t exist)

pwd

prints pathname of the current directory

rm <file>

removes or deletes filesr

rmdir <directory>

removes directory