[fix] bash: ssh: command not found

If you are trying to do an SSH on your Linux/Unix System and you get ssh command not found on bash shell, then most likely you do not have ssh installed on your device, you can get it installed using package tool such as apt-get

# apt-get install ssh
Reading package lists... Done
Building dependency tree       
Reading state information... Done
...
...
ssh installed newest version (1:8.2p1-4ubuntu0.4).

Now if you run ssh you will not get any error!

# ssh
usage: ssh [-46AaCfGgKkMNnqsTtVvXxYy] [-B bind_interface]
           [-b bind_address] [-c cipher_spec] [-D [bind_address:]port]
           [-E log_file] [-e escape_char] [-F configfile] [-I pkcs11]
           [-i identity_file] [-J [user@]host[:port]] [-L address]
           [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]
           [-Q query_option] [-R address] [-S ctl_path] [-W host:port]
           [-w local_tun[:remote_tun]] destination [command]