simple file sizes script 1

[longhair]

afternoon all,
working on what i thought would be a simple script (well probably is for most of you). anyway, what i need to do is write the date to the file if it's 0 bytes do nothing if it's greater.
thougth the following would do it:

if [ `wc -c </path/to/file/temp.txt` ! -gt 1]; then
 cat date > /files/dsch820.txt
fi

also tried using eq = 0 rather than ! -gt 1
any ideas?
regards,
longhair

 

[feherke]

Hi

[ ! `wc -c </path/to/file/temp.txt` -gt 1 ] && date > /files/dsch820.txt

Feherke.

http://rootshell.be/~feherke/

 

[longhair]

feherke,
thanks much!!
looks to work, will try it in a few scenarios to verify.
have a start
regards,
longhair

 

[PHV]

A simpler way:
[ -s /path/to/file/temp.txt ] || date > /path/to/file/temp.txt

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[feherke]

Hi

Please note that I used [tt]wc[/tt] just because you used it. But that will work slow on big and/or many files. You can use only the shell ( [tt]bash[/tt] and [tt]ksh[/tt] ) to do that :

[ -f /path/to/file/temp.txt -a ! -s /path/to/file/temp.txt ] && date > /files/dsch820.txt

Feherke.

http://rootshell.be/~feherke/

 

[longhair]

will keep the info in mind.
currently only looking at 2 files - don't think they are ever bigger than 30k.
regards,
longhair