ssh_bash.bash

#!/usr/bin/env bash

# @see http://qiita.com/miya0001/items/4dc5949dd792963ef578　Thanks!
# Usage: ssh user@example.com
#        Automatically adds `-i user@example.com` argument for `ssh` command.

# test: bash -c 'source ssh_bash.bash; ssh user@example.com ls'

function ssh {
  local HOSTSTR
  SSH=`which ssh`
  for i in "$@"
  do
  case $i in
  -*) # this is option
    # echo "this is option" "${i#*=}"
  ;;
  #echo "${i#*=}"
    # the first non-hyphoned argument must be a hostname (honto?
    # $ ssh -h
    # ssh: illegal option -- h
    # usage: ssh [-1246AaCfGgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec]
    #            [-D [bind_address:]port] [-E log_file] [-e escape_char]
    #           [-F configfile] [-I pkcs11] [-i identity_file] [-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]] [user@]hostname [command]
  *)
    if [ -z "$HOSTSTR" ]; then
      HOSTSTR="${i#*=}"
    fi
    ;;
  esac
  done

  if [ -f ~/.ssh/"${HOSTSTR}" ]; then
    $SSH -i ~/.ssh/${HOSTSTR} $@
  else
    $SSH $@
  fi
#    if [ -f ./.ssh-config ]; then
#        /usr/bin/ssh -F ./.ssh-config $@
#    else
#        /usr/bin/ssh $@
#    fi
}