• Crontab
• Extracting archives
• Compressing archives
• Copy files remotely
• File Permissions
• Finding Files
• Searching within files
• Troubleshoot broken dependencies
• Others

• Sytanx:

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'

• t rwx rwx rwx type / owner / group / world
• Type is directory (d) or file (-).
• read (r) 4
• write (w) 2
• execute (e) 1
• chmod 755 test.sh Make a file executable
• find . -name "*.php" -type f -exec chmod 755 {} \;

• Update the database of file names on the system

$ updatedb

$ locate file

$ which app

$ find / -name sbd*

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

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

• Search for the pattern xxx in a fil

$ grep xxx file

$ grep -r

$ zgrep

• Show referenced shared libraries and its resolution

$ ldd binary

• Import CA in java store

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