How can I change spaces to underscores and lowercase everything?

Posted by benjamin button on Stack Overflow See other posts from Stack Overflow or by benjamin button
Published on 2009-11-27T12:42:48Z Indexed on 2010/06/09 7:12 UTC
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Filed under:

perl

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shell-scripting

|

sed

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awk

I have a text file which contains:

Cycle code
Cycle month
Cycle year
Event type ID
Event ID
Network start time

I want to change this text so that when ever there is a space, I want to replace it with a _. And after that, I want the characters to lower case letter like below:

cycle_code
cycle_month
cycle_year
event_type_id
event_id
network_start_time

How could I accomplish this?

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