Hi Gora,
Thanks for your reply Its entirely my mistake I din't provide sufficient
information.
I wrote :-
#!/bin/sh
Date > /manish
Date –u >> /manish
Awk '{print $4}' /manish
##############
Now in out put I will get 2 different time I want the difference of these 2
time format
And need to run this script only at once.
-Manish Popli
On 3/8/07, Gora Mohanty <[EMAIL PROTECTED]> wrote:
>
> On Wed, 2007-03-07 at 17:06 -0500, Manish Popli wrote:
> > I need to write a shell script to compare row in a file. and show the
> > difference.
> >
> > Like in row 2nd it showing 21:30:49
> >
> > And in row 3rd it showing 19:25:21
>
> Incompletely specified. How are the rows separated? What is the
> meaning of the fields? Hours:Minutes:Seconds for 24h time? Do
> we have to worry about roll-over? Is sanity-checking of file
> format, and input values required? Why a shell script?
> For a trivial implementation in bash, assuming HH:MM::SS,
> disregarding most details and error-checking, save the following
> nine lines to a file, say diff.sh,
> #!/bin/bash
> while read f1 f2 f3
> do
> set `IFS=:; echo $f2`
> h2=$1; m2=$2; s2=$3
> set `IFS=:; echo $f3`
> h3=$1; m3=$2; s3=$3
> echo "Difference is $(($h2*3600+$m2*60+$s2-$h3*3600-$m3*60-$s3))"
> done < $1
>
> Do,
> chmod +x diff.sh
> and, invoke as
> ./diff.sh test.txt
> where test.txt is the name of the file containing your records.
>
> Regards,
> Gora
>
>
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--
Manish Popli
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