file commands
ls - directory listing
ls -al - formatted listing with hidden files
cd dir -change directory to dir
cd - change to home
pwd - show current directory
mkdir dir - create a directory dir
rm
cp
mv
ln -s file link - create symbolic link to file
touch file
cat
more file -output the contents of file
head file -output the first 10 lines of file
tail file
--searching
grep parttern files -search for pattern in files
grep - r pattern dir -search recursively fo pattern dir
command |grep pattern -search for patterns in the output of command
located file - find all instances of file
--system info
date
cal
uptime
w
whoami
finger
uname
cat /proc/cpuinfo -cpu information
cat /proc/meminfo -memory information
df - show disk usage
du - show directory space usage
whereis app -show possible locations of app
which
--compression
tar cf
tar xf
tar czf
tar xzf
tar cjf
tar xjf
gzip file
gzip
--network
ping
whois
dig
wget