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Editorial Team
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Asked: 2026-06-18T11:51:08+00:00

I have a text file that looks like this: [1] Header information Timestamp Text

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I have a text file that looks like this:

[1] Header information Timestamp Text begins
Text continues
Text continues
Text continues

[2] Header information Timestamp Text begins
Text continues
Text continues

[3] Header information Timestamp Text begins
Text continues
Text continues
Text continues

I’d like to read that file in, and process each entry (they’re anywhere from 1 to 20 or 30 lines) individually.

Is there any way to loop through the file using the blank lines as a delimiter?

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1 Answer

  1. Editorial Team

    the answer is yes!

    awk -vRS="" '...' will treat blank line as Row spliter.

    take your example and test:

    kent$  cat b.txt
[1] Header information Timestamp Text begins
Text continues
Text continues
Text continues

[2] Header information Timestamp Text begins
Text continues
Text continues

[3] Header information Timestamp Text begins
Text continues
Text continues
Text continues

kent$  awk -vRS="" '{print "==== new block here ===="}1' b.txt  
==== new block here ====
[1] Header information Timestamp Text begins
Text continues
Text continues
Text continues
==== new block here ====
[2] Header information Timestamp Text begins
Text continues
Text continues
==== new block here ====
[3] Header information Timestamp Text begins
Text continues
Text continues
Text continues
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