Bash shell's .bash_history file

In a Bash shell .bash_history file is generated.
How we can modify the settings so as to get timestamp in .bash_history?
Regards
Ritesh
Edited by: riteshumrawala on Jun 30, 2008 1:27 PM

Exit bash shell and start a new one. history on command line should show timestamps. I have timestamps in my .bash_history file, but they are not formatting properly.
#echo $HISTTIMEFORMAT
#%D:%T
#echo $0
#bash
#history
1 07/03/08:13:13:52env
2 07/03/08:13:14:23env
3 07/03/08:13:14:29ls -la
4 07/03/08:13:14:31pwd
5 07/03/08:13:14:40find / -name profile
6 07/03/08:13:14:58ls -la
7 07/03/08:13:15:04ls -latr
8 07/03/08:13:15:15cat .bash_history
9 07/03/08:13:15:38echo $0
10 07/03/08:13:15:39ls -la
11 07/03/08:13:15:45cat .bash_history
#cat .bash_history
#1215105232
env
#1215105263
env
#1215105269
ls -la
#1215105271
pwd
#1215105280
find / -name profile
#1215105298
ls -la
#1215105304
ls -latr
#1215105315
cat .bash_history
#1215105338
echo $0
#1215105339
ls -la
#1215105345
cat .bash_history
Not sure why the cryptic timestamp in .bash_history
john

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