本番環境とかでiTermの文字や背景色を切り替える

ssh-color.sh

#!/bin/bash
# 1. Save as ~/bin/ssh-color
# 2. chmod 755 ~/bin/ssh-color
# 3. alias ssh='~/bin/ssh-color'
# 4. change host name
# 5. ssh {your host name}

set_color() {
  local hex_fg=$1
  local hex_bg=$2
  local transparency=$3

  local fg_r=`echo $hex_fg | sed 's/../0x&,/g' | awk -F "," '{printf("%d",$1 * 257)}'`
  local fg_g=`echo $hex_fg | sed 's/../0x&,/g' | awk -F "," '{printf("%d",$2 * 257)}'`
  local fg_b=`echo $hex_fg | sed 's/../0x&,/g' | awk -F "," '{printf("%d",$3 * 257)}'`
  local bg_r=`echo $hex_bg | sed 's/../0x&,/g' | awk -F "," '{printf("%d",$1 * 257)}'`
  local bg_g=`echo $hex_bg | sed 's/../0x&,/g' | awk -F "," '{printf("%d",$2 * 257)}'`
  local bg_b=`echo $hex_bg | sed 's/../0x&,/g' | awk -F "," '{printf("%d",$3 * 257)}'`

/usr/bin/osascript <<EOF
tell application "iTerm"
  tell current session of first window
    set foreground color to {$fg_r, $fg_g, $fg_b}
    set background color to {$bg_r, $bg_g, $bg_b} 
    set transparency to "$transparency" 
  end tell
end tell
EOF
}

# change to your host name
if [["$@" =~ production.com]]; then 
   set_color ffffff 220000 0.3
elif [["$@" =~ development.co.jp]]; then
   set_color ffffff 001100 0.5
fi

ssh $@

set_color ffffff 000000 0.2 # default termnal color