以下是一个简单的while循环示例,它会一直打印“Hello, World!”直到用户手动停止(例如,通过按Ctrl+C): bash #!/bin/bash counter=1 while [ $counter -le 5 ] do echo "Hello, World! ($counter)" counter=$((counter + 1)) done 在这个示例中,counter 从1开始,每次循环增加1,直到其值大于5时循环...
#1/bin/bashif[ $# -eq1];thencounter="1"counter1="1"echo"for loop:"foriin$(seq1$1);doecho$idoneforiin$(seq1320);doecho"welcome $i times"donefor((i=1;i<3;i++));doecho$idoneecho"while loop"while[ $counter -le $1];doecho$counter counter=$((counter+1))doneecho"until l...
/bin/bashx=1while[$x-le5]doecho"Welcome $x times"x=$(($x+1))done Here is a sample shell code to calculate factorial using while loop: #!/bin/bashcounter=$1factorial=1while[$counter-gt0]dofactorial=$(($factorial*$counter))counter=$(($counter-1))doneecho$factorial To run just t...
#1/bin/bashif[ $# -eq1];thencounter="1"counter1="1"echo"for loop:"foriin$(seq1$1);doecho$idoneforiin$(seq1320);doecho"welcome $i times"donefor((i=1;i<3;i++));doecho$idoneecho"while loop"while[ $counter -le $1];doecho$counter counter=$((counter+1))doneecho"until l...
while [ $x -le 5 ] do echo "Welcome $x times" x=$(( $x + 1 )) done 1. 2. 3. 4. 5. 6. 7. Here is a sample shell code to calculate factorial using while loop: #!/bin/bash counter=$1 factorial=1 while [ $counter -gt 0 ] ...
while [condition] do if [condition] then break fi Commands_to_Execute done For example, the below-given Bash script is printing numbers 1 to 5 to the standard output. Use thebreakstatement to exit the loop when the counter reaches 4. ...
The script initializes a counter variable 'ctr' to 10. Then, it enters a while loop that continues as long as 'ctr' is greater than 0. Inside the loop, it prints the current value of 'ctr' and decrements it by 1 in each iteration. ...
#!/bin/bash # 设置计数器的初始值 counter=1 # 设置循环的终止条件 while [ $counter -le 10 ] do # 在这里编写循环体的代码 echo "当前数字是:$counter" # 更新计数器的值 counter=$((counter + 1)) done 上述脚本中,我们使用了一个while循环来控制循环的执行。counter变量用于存储当前的数字...
# While loop counter=1 while [[ $counter -le 5 ]]; do echo “Counter: $counter” counter=$((counter+1)) done “` 以上是编写 Bash 脚本的一些建议和示例。当然,还有很多其它功能和语法可以用于编写 Bash 脚本,这只是一个入门级的介绍。要深入了解 Bash 脚本编写,请参考 Bash 的官方文档或相关的教...
while [ 1 ] do 语句 done 格式五 死循环 while [ 0 ] do 语句 done 使用示例 示例一 Bash代码 COUNTER=0 while [ $COUNTER -lt10]; do echo The counter is $COUNTER let COUNTER=COUNTER+1 done COUNTER=0while[$COUNTER-lt10];doechoThe counter is$COUNTERletCOUNTER=COUNTER+1done ...