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Re: [Help-bash] modifying files in place.
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From: |
Greg Wooledge |
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Subject: |
Re: [Help-bash] modifying files in place. |
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Date: |
Fri, 31 May 2013 08:46:54 -0400 |
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User-agent: |
Mutt/1.4.2.3i |
On Fri, May 31, 2013 at 03:00:46AM +0200, John Kearney wrote:
> { rm file && awk 'whatever' >file } <file
Nitpick: you need a ; or newline before the closing }.
As others have said, this isn't safe -- if awk fails, or if the system
crashes before awk finishes, the file will be gone with no backup copy.