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  #1  
Old 08-16-2006
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script for add and subtract two hours
i find a script to calculate hours of job i(nclude extraordinary)

i make a script to calculate add and subtract two hours (format hh:mm:ss)
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  #2  
Old 08-16-2006
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Do you know about time?
try:
Code:
time myscript.sh
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  #3  
Old 08-16-2006
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Or try:
Code:
    start_time=`perl -e 'print time;'`
    myscript.sh
    elapsed_time=$(echo "`perl -e 'print time;'` - $start_time    | bc)
    echo "Total time in seconds: $elapsed_time"
Last edited by jim mcnamara; 08-16-2006 at 12:48 PM. Reason: inverted subtraction...
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  #4  
Old 08-16-2006
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doesn't 'elapsed = finish_time - start_time' and not vice versa?
not sure if you need 'bc' - your math is integer math anyway.
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  #5  
Old 08-16-2006
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Yup -vgersh - you're right.

Some shells do not do integer math beyond 255. I can't tell what shell.
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  #6  
Old 08-16-2006
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where is the code ???
time myscript.sh ????

where is the code ???

i search a ssh or ksh script Timesub(time1 time2 ) which return time1-time2

(two string :"hh.mm.ss")

can you help me ??
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  #7  
Old 08-17-2006
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the propper do to is using epoch. (seconds since 1.1.1970) because if you have DST is can
srew your script very badly. also the math is integer math and therefore very easy.

you can use date to convert from and into epoch.
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