Bash Infinite while Loop The infinite loops are used for many purposes in Bash scripting, such as testing, debugging, event handling, and managing background processes. The while loop stands as one of the crucial loop structures, often employed to construct infinite loops. The syntax of the whi...
Bash While loop example A While loop in a Bash script will trigger a series of commands to run repeatedly for as long as the condition result is “True.” Below is an example of Bash While loop syntax. Example: Explicit example:
syntax:until expressiondocommands #bodyofthe loop done 在上面的 bash until 语法中: where until, do, done 是关键字 表达式 任何条件表达式 Bash until Example 5. 监控日志文件 此示例监视日志文件的大小,一旦日志文件大小达到 2000 字节,它将获取该日志文件的副本。 $ cat monitor.sh file=/tmp/logfile u...
Until Loop #!/bin/bash var=1total=0until[ $var -gt100];dototal=$((total +var)) var=$((var+1))doneechosumis $total For Loop #!/bin/bash total=0forvarin`seq1100`;dototal=$((total +var))doneechosumis $total
syntax: until expression do commands #body of the loop done 在上面的 bash until 语法中: where until, do, done 是关键字 表达式 任何条件表达式 Bash until Example 5. 监控日志文件 此示例监视日志文件的大小,一旦日志文件大小达到 2000 字节,它将获取该日志文件的副本。
问Bash中的While-loop子壳困境ENbash中的变量
bash创建变量列表中的一行while-loop 、、、 我正在尝试编写一个1行while循环,它创建一个文件名字符串,如list="temp0.txt temp1.txt temp2.txt ...“等等。我希望它是一个介于0和50之间的随机文件数,这就是我到目前为止所得到的。,然后使用while循环创建与该随机数相同数量的文件。然后,我想创建一个字符...
#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 ...
bash shell if-statement while-loop m3u 我正在编写一个脚本来解析m3u文件。目标是检索变量标记和url。我用这个文件做了测试。 #!/bin/bash echo "name,tvg-id,tvg-name,tvg-country,group-title,languages,url" while IFS= read -r line; do tags_detect="$(echo "$line" | grep -Eo '^#EXTINF:')...
In this tutorial, we’ll take a look at using user input as awhileloop condition in the Linux shell. 2. UnderstandingwhileLoops Before we dive into using user input, let’s first discuss the concept and syntax of awhileloop: while [condition]; do ...