Autocomplete server names for SSH and SCP for Git Bash

Autocomplete_ssh_scp.md

Autocomplete server names for SSH and SCP for Git Bash

For ssh

1. Make a file with name ssh as following content:

_ssh() 
{
    local cur prev opts
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"
    opts=$(grep '^Host' ~/.ssh/config ~/.ssh/config.d/* 2>/dev/null | grep -v '[?*]' | cut -d ' ' -f 2-)

    COMPREPLY=( $(compgen -W "$opts" -- ${cur}) )
    return 0
}
complete -F _ssh ssh

2. Put that script in /etc/bash_completion.d/ssh (Linux)

• Windows: C:\Program Files\Git\usr\share\bash-completion\completions (Path in Bash like /usr/share/bash-completion/completions/ssh)

3. And then source it with the following command:

$ . /etc/bash_completion.d/ssh (if Linux)
$ . /usr/share/bash-completion/completions/ssh (if windows)

• Or append . /usr/share/bash-completion/completions/ssh into ~/.bash_profile or ~/.bashrc, like following:

# Hong-Thai: make autocomplete for ssh
test -f /usr/share/bash-completion/completions/ssh && . /usr/share/bash-completion/completions/ssh
test -f /usr/share/bash-completion/completions/scp && . /usr/share/bash-completion/completions/scp

4. Then, append the following content into ~/.ssh/config

# Example:
 Host myubuntu
   Hostname 172.10.5.4
   User vagrant
 Host mycentos
   Hostname 192.168.99.102
   User centos
   ProxyJump gateway
   ProxyCommand=nc -X 5 -x 10.17.1.100:2500 %h %p
 Host mydebian
   Hostname 192.168.1.103
   User centos
   ProxyJump gateway

For scp

* Make a file with name scp as following content:

_scp() 
{
    local cur prev opts
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"
    opts=$(grep '^Host' ~/.ssh/config ~/.ssh/config.d/* 2>/dev/null | grep -v '[?*]' | cut -d ' ' -f 2-)

    COMPREPLY=( $(compgen -W "$opts" -- ${cur}): )
    return 0
}
complete -F _scp -o nospace scp

* Next steps, do the same as ssh above