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cat /dev/null

 
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# 1  
Old 03-20-2008
cat /dev/null
Hi,

Excuse my ignorance here - I'm a networks man and my knowledge of all things unix is somewhat limited.

We have a very large file (/var/tmp/mond.log) that we need to zero - does the "cat /dev/null > /var/tmp/mond.log" command achieve this?
# 2  
Old 03-20-2008
Simply run

cp /dev/null /var/tmp/mond.log

All the content of the log file will be removed
# 3  
Old 03-20-2008
MySQL
Quote:
Originally Posted by ss250041
Simply run

cp /dev/null /var/tmp/mond.log

All the content of the log file will be removed
fantastic - thanks!!
# 4  
Old 03-20-2008
RE: cat /dev/null
You could also do

> /var/tmp/mond.log

That is, greater than + space + filepath
# 5  
Old 09-10-2008
cat > file_to_be_emptied
ctrl-D
 
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