Password Management

Password management is a critical role for any sysadmin. These four functions can help you with password management.

Append these lines at the end of ~/.profile:

# Generates a new random password 80 chars in length
function newpass {
       jot -rc -s '' 80 33 127

# Generates a new alphanumeric password 80 chars in length
function alnumpass {
        cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w ${1:-80} | head -n 1

# Pages through all your passwords
function getpass {
        openssl aes-256-cbc -d -a -in $HOME/password.asc | less

# Writes all your passwords to ~/password
function allpass {
        openssl aes-256-cbc -d -a -in $HOME/password.asc -out $HOME/password

# Takes your passwords in ~/password, encrypts them, then overwrites password.asc
function savepass {
        openssl aes-256-cbc -a -in $HOME/password -out $HOME/password.asc && rm -P $HOME/password

To use the functions, first source the file:

$ . .profile

Afterwards, type the function in the command line:

$ newpass