interactive-sr

#!/bin/sh
usage(){
	fmt <<EOF
DESCRIPTION
	Use Vim to perform an interactive search and replace on a list of files.

USAGE
	interactive-sr REGEX FILE [FILE...]
		REGEX is in the form of "/FIND/REPLACE/".
		If using () backreferences, parentheses must be escaped.
		REGEX is vim-flavored.
		Do not pass any flags to REGEX.
		Use y/n/a to confirm (y) or reject (n) a replacement, or to replace (a)ll.

EOF
	exit
}
require(){ command -v $1 > /dev/null 2>&1 || { suggestion=""; if [ ! -z "$2" ]; then suggestion=" $2"; fi; die "$1 is not installed.${suggestion}"; } }
if [ $# -eq 1 ]; then if [ "$1" = "--help" -o "$1" = "-h" ]; then usage; fi fi
#End boilerplate

require "vim" "Try: apt-get install vim"

#Store the regex
regex="$1"

#Remove the regex from the list of arguments
shift

#'set title' shows the filename in the terminal title
#'set eventignore-=Syntax' enables syntax highlighting in all files
#'wqa writes and quits all buffers
vim "+silent set title" "+silent bufdo set eventignore-=Syntax | %s${regex}gce | silent update" "+silent qa" $@