[SOLVED] extraction of sting

xerox · 07-29-2011, 05:11 AM

Given the input :
busybox-1.11.1-1_WR3.0bg.armv6jel_vfp.rpm
i want to extract what comes before ".rpm"
i.e, busybox-1.11.1-1_WR3.0bg.armv6jel_vfp

acid_kewpie · 07-29-2011, 05:36 AM

if that's a proper description of the issue, i.e. remove the .rpm suffix, just use "basename $STRING .rpm"

xerox · 07-29-2011, 05:49 AM

suppose my input is like this
busybox-1.11.1-1_WR3.0bg.armv6jel_vfp.rpm = 1.1111.2l2

i want to extract
busybox-1.11.1-1_WR3.0bg.armv6jel_vfp

from the given input line

given characters may follow ".rpm"

I dont want anything after ".rpm"

using sed or awk command

crts · 07-29-2011, 05:49 AM

Or, if you are using bash then you could use bash's own String manipulation mechanism, e.g.

Code:

echo ${STRING%.rpm*}

[edit]: Just saw your latest post. So is it correct to assume that this line is inside a file and not stored in a variable?
In this case:

Code:

sed 's/\.rpm.*$//' inputfile

You might have to provide a representative sample of you input data.

xerox · 07-29-2011, 06:02 AM

Yes...perfect ...it worked just as i wanted it to......

Thanks a zillion....