In any programming or scripting language, the loop is a quintessential feature. Loops are generally to perform a repetitive task until a certain condition is met. Bash is a powerful scripting language that supports all the major features of a scripting l
Bash For Loop In One Line with Files # for i in *; do echo "Found the following file: $i"; done # for i in `cat filelist.txt`; do echo ${i}; done; if a line may include spaces better use a while loop: # cat filelist.txt | while read LINE; do echo "${LINE}"; done ...
# for planet in Mercury Venus Earth Mars Jupiter Saturn Uranus; do echo $planet; done Bash for loop C style In One Line with items 代码语言:txt 复制 # for ((i=1;i<=5;i++));do echo $i;done Bash For Loop In one line with Command Output 代码语言:txt 复制 # for i in `seq 1...
To sum up, this was all about the use of the nested “for” loop in the Bash script of the Ubuntu 20.04 Linux system. We have discussed the examples to see a simple “for” loop in Bash, nested “for” loop, and a one-line nested “for” loop in Bash script....
使用IF遍历文件中的每一行的BASH - loop (for) 在BASH脚本中,我们可以使用循环结构来遍历文件中的每一行,并使用IF语句进行条件判断。一种常见的循环结构是for循环,下面是一个示例: 代码语言:txt 复制 #!/bin/bash # 文件路径 file_path="/path/to/file.txt" # 使用for循环遍历文件中的每一行 fo...
Bash Script #!/bin/bash #For Loop to Read white spaces in String as word separators str="Let's start learning from Javatpoint." fori in $str; do echo"$i" done Output For Loop to Read each line in String as a word The syntax can be defined as below: ...
在Bash For Loop中使用“Continue”语句 “ continue ”语句是控制脚本运行方式的内置命令。除了bash脚本之外,它还用于Python和Java等编程语言。continue语句在满足特定条件时停止循环内的当前迭代,然后恢复迭代。可以看看如下所示的for循环。 #!/bin/bash
/bin/bash # Print numbers from 1 to 5 for i in $(seq 1 5); do echo $i done In the above snippet, the $(seq 1 5) part is used to generate a list of integers from 1 to 5. It will then loop over the list one by one and then each value will get printed on a new line...
<loop-body> done Example #1: Repeat N Times or Iterate over a Range inforLoop inbash To repeat N times, where N is a variable, use either of the following formats. N=10 for i in $(seq 1 $N); do echo "$i-th run" done ...
Until Loops in Bash If you are coming from a C/C++ background, you might be looking for a do-while loop but that one doesn't exist in bash. There is another kind of loop that exists in bash. The until loop follows the same syntax as the while loop: ...