Shell Programming and Scripting

while read LINE; do
if [ ! $LINE ] 2>/dev/null; then
   break
fi
echo -e ${LINE} >> $file
done

readmultiline.sh

#! /usr/bin/env bash
file=file1
while read LINE; do
if [ -z "$LINE" ]; then
   break
fi
echo -e "${LINE}" >>$file
done

$ bash readmultiline.sh
Unix is god^[[B^[[A^[[C^[[D
Linux^[[A^[[D^[[B^[[C^[[A

$ cat -A file1
Unix is god^[[B^[[A^[[C^[[D$
Linux^[[A^[[D^[[B^[[C^[[A$

while [[ $a < 2 ]]
do
read line
if [[ "$line" != "" ]]
then
let a=0
echo $line >> file_temp
else
let a++;
fi
done