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ROOT ‹ Tutorials & Guides ‹ Linux Distributions ‹ Linux Shell: "Cannot overwrite existing file" when the file is owned by you

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Linux Shell: "Cannot overwrite existing file" when the file is owned by you

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LaR3

Post subject: Linux Shell: "Cannot overwrite existing file" when the file is owned by you | Posted: Mon Aug 24, 2009 5:26 pm

Joined: Mon Aug 03, 2009 11:55 pm
Posts: 19

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If the shell noclobber environment variable is set, you will not be able to overwrite a file's content by redirecting some output to it.

Code:

# echo "2nd Overwritten content">tmp.file
bash: tmp.file: cannot overwrite existing file

First option would be to disable the noclobber variable:

Code:

# set +o noclobber; set -o | grep nocl
noclobber       off

The second option is to use the pipe (|)right after the redirection sign:

Code:

# echo "2nd Overwritten content" >| tmp.file
# cat tmp.file
2nd Overwritten content

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