# loop through a list forvalueinlist do commands done # loop specified values forvalueinfile1 file2 file3 do commands done # loop through strings resulting from a command forvaluein$(Linuxcommand) do commands done # loop through increment or decrement numbers ...
Theforloopis an essential programming functionality that goes through a list of elements. For each of those elements, theforloop performs a set of commands. The command helps repeat processes until a terminating condition. Whether you're going through an array of numbers or renaming files,forloo...
A“for” loop is a fundamental part of almost every programming language. It helps write the code you want to be repeated in the desired number of times. For Linux-based systems, Bash also features dedicated syntax that enables its users to leverage loops for automating their day-to-day tas...
run the loop while the condition is true). Theforstatement is more versatile than thewhilestatement as you can also iterate over a list of items using aforloop without explicitly defining a condition. Thusforloops are often used when the number of loop iterations or the items to ...
Example 1: Loop through a Given Range #!/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 ea...
The current item from the list will be stored in a variable “varname” each time through the loop. This “varname” can be processed in the body of the for loop. Method 2: Bash For Loop using C like syntax The second form of the for loop is similar to the for loop in “C” ...
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
Unlike most loops, theforloop does not test the condition of a variable each time it goes around the loop. Instead, it starts with a list of items to iterate through and works its way through them until it has reached the end. This makes it the most deterministic of the loop structures...
Using for loop on a list/range of items C-style For Loops in Bash If you are familiar with a C or C++ like programming language, then you will recognize the following for loop syntax: for ((initialize ; condition ; increment)); do [COMMANDS] done ...
commands: The commands can be any operating-system commands, a user program, a shell script, or a shell statement that returns (produces) a list. The value of the variable var is set to the first word in the list the first time through the loop. The second time through the loop, its...