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Delete files if they exist

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# 1  
Old 10-29-2008
Delete files if they exist
In a directory a number of files named res0.om res1.om ... resN.om

where N can be any unknown number between 1 and 999

Please help me filling out the gaps in the following csh script:

I need to delete all files exept res0.om The easy way is

rm res1*
rm res2*
rm res3*
rm res4*
rm res5*
rm res6*
rm res7*
rm res8*
rm res9*

but that gives a lot of ugly error messages in case N < 9.

Can i use something like:

if (res9* exist) rm res9*

?
# 2  
Old 10-29-2008
Or alternatively:

rm (res* exept res0.om)

???
# 3  
Old 10-29-2008
Hammer & Screwdriver Try this approach
Code:
> ls res[0-9]*                 
res0  res1  res19  res2  res4  res666  res9

list files excluding res0 file
Code:
> ls res[0-9]* | grep -v "res0"
res1
res19
res2
res4
res666
res9

The following will use that filtered list, and do something. Here, I do an ls -l, but you could do an rm.

Code:
> for file in `ls res[0-9]* | grep -v "res0"`; do ls -l $file; done
-rw-rw---- 1 xxx dp 0 Oct 29 07:18 res1
-rw-rw---- 1 xxx dp 0 Oct 29 07:18 res19
-rw-rw---- 1 xxx dp 0 Oct 29 07:18 res2
-rw-rw---- 1 xxx dp 0 Oct 29 07:18 res4
-rw-rw---- 1 xxx dp 0 Oct 29 07:18 res666
-rw-rw---- 1 xxx dp 0 Oct 29 07:18 res9
>

# 4  
Old 10-29-2008
man find
Code:
find . -type f \( -name "res*.om" -a ! -name "res0.om" \) -exec ls {} \;

Replace ls by rm.
Last edited by danmero; 10-29-2008 at 01:02 PM..
# 5  
Old 10-29-2008
try "rm -f res*[1-9]*"

the -f will not give an error if the file does not exist.


Quote:
Originally Posted by pederlol
In a directory a number of files named res0.om res1.om ... resN.om

where N can be any unknown number between 1 and 999

Please help me filling out the gaps in the following csh script:

I need to delete all files exept res0.om The easy way is

rm res1*
rm res2*
rm res3*
rm res4*
rm res5*
rm res6*
rm res7*
rm res8*
rm res9*

but that gives a lot of ugly error messages in case N < 9.

Can i use something like:

if (res9* exist) rm res9*

?
# 6  
Old 10-29-2008
Thanks to all of you. It works now Smilie
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