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Filter last 2 characters of a filename

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# 1  
Old 03-06-2012
Filter last 2 characters of a filename
I have following script to 'archive' some logfiles:
Code:
for APPHOME in `cat $HOME/archive/apps.cfg`
do
        . $APPHOME/archive/parms.cfg

        LOGFILES=$(grep "^LOGFILE=" $APPHOME/archive/parms.cfg)

        for I in $LOGFILES
        do
                LOGPATH=$(echo $I |awk -F'=' '{ print $2 }')
                FILENAME=$(basename $LOGPATH)
                DIR=$(dirname $LOGPATH)
                cp -p $LOGPATH $LOGPATH.$DATE
                cp /dev/null $LOGPATH
                find $DIR -mtime +7 -name "$FILENAME.????????????" -print -exec gzip {} \;
                find $DIR -mtime +21 -name "$FILENAME.????????????.gz" -print -exec mv {} $ARCHIVEDIR \;
        done

done

Problem is that some logfiles already got 'logrotated' (and I don't have access to that mechanism).
I can include the .0 .1 ... files in the logfile list, but they shouldn't be emptied, otherwise I don't have anything else then empty files in the archive
So I need to filter these files to exclude them from the cp -p $LOGPATH $LOGPATH.$DATE
So I need to know how I can test if the last 2 characters have the .0 (.1 .2 ...) extention.
Last edited by Scott; 03-06-2012 at 04:15 AM.. Reason: Please use code tags
# 2  
Old 03-06-2012
Quote:
Originally Posted by oliware
So I need to know how I can test if the last 2 characters have the .0 (.1 .2 ...) extention.
Code:
x="logfile.1"
if [ ".${x##*.}" == ".1" ]
then
    echo "extension is .1"
fi

This User Gave Thanks to balajesuri For This Post:
oliware
# 3  
Old 03-06-2012
Quote:
Originally Posted by balajesuri
Code:
x="logfile.1"
if [ ".${x##*.}" == ".1" ]
then
    echo "extension is .1"
fi


If this is used with arbitrary file names, an explicit test against the value 1 is required.

If the value of x is 1, the parameter expansion will return 1 (since there's nothing for it to delete from the value) and the prepending of the dot then makes the test succeed when it should fail.

Regards,
Alister
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