bash的几种for循环

1、罗列式

for VARIABLE in 1 2 3 4 5 .. N
do
	command1
	command2
	commandN
done


#!/bin/bash
for i in 1 2 3 4 5
do
   echo "Welcome $i times"
done


2、使用rang
#!/bin/bash
for i in {1..5}
do
   echo "Welcome $i times"
done


3、使用rang and step
echo "Bash version ${BASH_VERSION}..."
for i in {0..10..2}
  do
     echo "Welcome $i times"
 done


4、使用seq
for i in `seq 1 5`
do
   echo "Welcome $i times"
done




5、和高级语言一样的for
for (( EXP1; EXP2; EXP3 ))
do
	command1
	command2
	command3
done


#!/bin/bash
for (( c=1; c<=5; c++ ))
do
	echo "Welcome $c times..."
done


#!/bin/bash
for (( ; ; ))
do
   echo "infinite loops [ hit CTRL+C to stop]"
done

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