SSH-Autocomplete.sh

# Modified from https://gist.github.com/aliang/1024466

# Recursively greps config.d for ssh configs using the
# OpenSSH 7.3p1 (https://www.openssh.com/txt/release-7.3) Include directive
# Original script didn't do this, hence my modification

# I included an exclude for "*.txt" files since I generate my ssh configs using SaltStack 
# and I move old files to ./old/{DATE}.txt, in case anything goes wrong (salt minion dead, etc)
# Feel free to modify this however you see fit of course.

# I also modified the cut line to just use awk as per recommendation of
# https://gist.github.com/aliang/1024466#gistcomment-1868997

# Put this in .bash_profile

_complete_ssh_hosts() {
  COMPREPLY=()
  cur="${COMP_WORDS[COMP_CWORD]}"
  comp_ssh_hosts=$(
    awk '{split($1,aliases,","); if (aliases[1] !~ /^\[/) print aliases[1]}' ~/.ssh/known_hosts ;
    grep -r --exclude="*.txt" "^Host " ~/.ssh/config.d/ | grep -v "*" | awk '{print $2}'
  )
  COMPREPLY=( $(compgen -W "${comp_ssh_hosts}" -- "$cur"))
  return 0
}
complete -F _complete_ssh_hosts ssh