speller

UNIX+shell范例精解（第4版）代码

#!/bin/ksh
# Scriptname: speller
# Purpose: Check and fix spelling errors in a file
# 

exec < tmp         # Opens the tmp file 
while read line    # Read from the tmp file
do
	print $line
	print -n "Is this word correct? [Y/N] "
	read answer < /dev/tty    # Read from the terminal
	case $answer in
	[Yy]*) 
		continue
		   ;;
	*) 
		print "New word? "
		read word < /dev/tty
		sed "s/$line/$word/" tmp > error
		mv error tmp

		print $word has been changed.
		    ;;
	esac
done