Shell Programming and Scripting

Hi,

I am a beginner in shell scripting but I have a task to complete where I have to extract the time of script execution in human format so anyone can run the script and understand what script is running when in simple format. Let me illustrate what I mean:

Two scripts in crontab, for this illustration:

1 0 * * * /usr/bin/rotatelogs.pl
5 3,9,15,18,22 * * * /usr/scripts/backupDB.ksh

Now, how would I translate 0 in first line to say "00:01 AM" and same for second line translating it to "03:05 AM", "09:05 AM", "03:05 PM", " 06:05 PM", "10:05 PM".

Any help is greatly appreciated and if you think there is an excellent source to learn on the shell scripting, on the web or a book please advice.

Thanks in advance!!
HS

Advanced Bash-Scripting Guide

Thanks Broli, I have that link and working on it. It is a wonderful guide for a beginner or advanced scripter.
But any one have clue how to convert the numbers to time format?
thanks,
hs

Assuming the first field(minutes) is not having commas and no starts in first two fields. Also it doesn't take care of the days if you have any. Probably you can work on that :

crontab -l | grep -v '^$' | grep -v '^#' |awk '{ gsub(/[ ]*,[ ]*/, ","); print }' | awk '{printf("%s,%02d,%s\n", $6,$1,$2)}' | awk -F, '{printf("%s runs at : ",$1);for(i=3;i<=NF;i++){printf("%02d:%02d, ", $i,$2)} printf "\n" }'

Also, I think you can easily work on formatting and converting to AM/PM.

Thanks, that is enough to get me started...I appreciate your guidance...Thx!!