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1) Yes
2) Yes
3) `echo $mPref | egrep -q "\.[0-9]{10}:[0-9]{2}:[0-9]{2}"` will not neglect current file. The skipping part is done by next line "[ $? -eq 0 ] && continue" which means, if the exit...

--> Value in $mPref is echo'd to egrep.
--> egrep stands for extended grep (look for manpages of grep option -E)
--> -q option is to suppress the output.. used to silence grep even when a match is...

#! /bin/bash
cd /home/user01/exercise

exercise=/home/user01/exercise

mDate=$(date +%Y%m%d%H:%M:%S)
for mFName in $exercise/*.log
do
mPref=${mFName%.log}
echo $mPref | egrep -q...