Date from the time stamp

Hi All,

i have a time stamp. from that i am trying to awk to get the year,
month and date.

TIME=20060614092446

DESIRED OUTPUT: 20060614

i am doing the following;

TIME=20060614092446
$ TimeStarted=`expr match '$TIME' '.*\(......\)'`
echo $TimeStarted

i am not getting any output. can anyone please suggest me.

thanks
mark

.

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