Shell编程进阶 2.0 shell中断继续退出

break    continue   exit  

break 结束本次for循环

写个for循环脚本

vim for2.sh

#!/bin/bash
##
for i in `seq 1 5`
do
        echo $i
if [ $i -eq 4 ]
then
        break
fi
echo $i
done
echo "for done"

sh for2.sh

1
1
2
2
3
3
4
for done

continue 结束本次循环

#!/bin/bash
##
for i in `seq 1 5`
do
        echo $i
if [ $i -eq 4 ]
then
        continue
fi
echo $i
done
echo "for done"

1
1
2
2
3
3
4
5
5
for done

exit 结束shell

#!/bin/bash
##
for i in `seq 1 10`
do
        echo $i
if [ $i -eq 4 ]
then
        exit
fi
echo $i
done
echo "for done"

1
1
2
2
3
3
4