I realise that this is a bit late, but I haven't checked this account
for a while :)
perl -lane '$x+=$F[1];print "$F[0]\t$x"' < foo
(where foo is your original file)
cheers,
Darren
Yanto Young wrote:
Hi guys,
I would like to know if there's a quick and dirty method (using
bash/sed/awk) to perform the following:
Original file:
*******************
t=0 1
t=1 1
t=2 -1
t=3 1
t=4 1
t=5 -1
*******************
Desired result:
*******************
t=0 1
t=1 2
t=2 1
t=3 2
t=4 3
t=5 2
*******************
that is, I would like to perform cumulative addition on the second column.
Thanks.
Best regards,
Yanto
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