Bash Infinite Loop Shell Linux

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How can write infinite shell that will run forever? May be I need a 5 second sleep between steps. Recently I have a issue with my routing table and I need to remove some route automatically every 5 minutes. I came up with a solution that runs every 4 minutes and clears unwanted routes.

While Infinite Loop

There are a lot of different ways do express our solution one of them is when loop of bash. We will provide true to the while.

While Infinite Loop
While Infinite Loop

Here while true runs loop forever between do and done is run regularly but sleep 5 makes the script or each step to wait 5 seconds. We can cancel script with CTRL+C.

For Infinite Loop

We can also implement infinite loops with the for . We will provide ( ; ; ) to the for loop which means infinite loop. We will print test to the console forever with 5 seconds intervals.

For Infinite Loop
For Infinite Loop

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LEARN MORE  Python While Loop Tutorial