[CentOS] question on grep

[Ross S. W. Walker]

mups.cp wrote:
> 
> A simple one
> # echo "jerry jerry" | tr " " "\n" | grep -c jerry
> 2
> 
> The perl seems more general.


To add yet another variation:

echo "jerry jerry" | awk 'BEGIN {RS=FS} {/jerry/ jerry++} END {print jerry}'

-Ross

> On 10/10/07, Andy Harrison <aharrison at gmail.com> wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> >
> >
> > On 10/10/07, Jerry Geis  wrote:
> > > Is there a command line option on grep that says
> > > count ALL occurances on a line not just the first one???
> > >
> > > echo "jerry jerry" | grep -c jerry
> > >
> >
> > Grep can just count the number of lines with occurrences not the
> > number of them.  You can do it in perl though.
> >
> >
> > # echo "jerry jerry" | perl -lane '$count = grep $_ =~ m/jerry/, @F;
> > print $count'
> > 2
> >
> > - --
> > Andy Harrison
> > public key: 0x67518262
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> > =WlD0
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