整断注释，从参数读文件用while循环

#!/bin/ksh

# how to comment many line?
:<while read line
do
  your command...
done < tmp
BLOCK

 

//整段注释

 

 

if [[ $# < 1 ]]
then
echo "USAGE: `basename $0` par1 par2 par3... "
  exit 1
fi

cat $1 |while read line
do

echo "this parameter is $line"

done

//从参数输入文件循环