[doc] bash completion

[sbonnegent]

We use this to do bash completion on sshgate command, maybe can be usefull:

We define 2 alias in .bash_aliases:

alias sshgate="ssh -Xt sshgate@YOUR_SERVER"
alias update_sshgate="ssh sshgate@YOUR_SERVER cmd list targets > ~/.sshgate_list_targets.txt"

And in your .bashrc:

_sshgate_hosts()
{
local args cur opts
COMPREPLY=()

argc : parameters number

argc=${COMP_CWORD}

cur : current word

cur="${COMP_WORDS[argc]}"

targets list

opts=""

if [ ! -e ~/.sshgate_list_targets.txt ]
then
/usr/bin/ssh sshgate@YOUR_SERVER cmd list targets > ~/.sshgate_list_targets.txt
fi

for i in $(cat ~/.sshgate_list_targets.txt)
do
opts="$opts $i"
done

we search $cur in targets list

COMPREPLY=( $(compgen -W "$opts" -- $cur ) )
}
complete -F _sshgate_hosts sshgate

An example:

cat ~/.sshgate_list_targets.txt
root@server1
root@server2
root@server3

sshg[TAB]
sshgate [TAB]
sshgate root@server[TAB][TAB]
root@server1
root@server2
root@server3

[beudbeud]

hi i'm use auto completion for sshgate

in your .bashrc

gatehost=sshg 'cmd list targets' | tr -d $'\r' | sed 's/root@//g' 2>&1
complete -W "$gatehost" sshg
complete -o nospace -F _scp -W "$gatehost" scpg