minute hour day-month month day-week CMD

$ tar xvfj test.tar.bz2

$ tar zxvf test.tar.gz

$ tar zxvf test.tar

$ gzip -d test.gz

$ unzip test.zip

$ zcat rockyou.txt.gz > rockyou.txt

$ tar -zcvf test.tar test

$ gzip test

$ zip -9 test.zip test

$ zip -r test.zip test/

$ scp /path/to/local/file.txt user@targetIP:/path/to/share # local to remote

$ scp -r user@targetIP:/path/to/share /local/share # remote to local

$ cat ~/.ssh/id_rsa.pub | ssh user@targetIP 'cat >> .ssh/authorized_keys'

$ updatedb

$ locate file

$ which app

$ find / -name sbd*

$ find / -perm -o+w -type d

$ find / -perm -o+e -type d

$ grep xxx file

$ grep -r

$ zgrep

$ ldd binary

sudo keytool -import -alias foo -trustcacerts -keystore cacerts -file cacert.der