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I have a quick question, how to change a string "abcd" to another string
"xyabcd" in all the *.m (text) files under current directory?

I defintely can write a perl script to do this. But I remember there is a
most simple way of doing this using Perl.

It is just "Perl xxxxxxxxxxxxxxxx" a command line with some options...

It just escaped my memory, anybody knows how to do that please give me a
hand!

Thanks a lot.

"lucy" <> wrote in
news:ch550l$j1t$:

> I have a quick question, how to change a string "abcd" to another
> string "xyabcd" in all the *.m (text) files under current directory?
>
> I defintely can write a perl script to do this. But I remember there
> is a most simple way of doing this using Perl.
>
> It is just "Perl xxxxxxxxxxxxxxxx" a command line with some options...
>
> It just escaped my memory, anybody knows how to do that please give me
> a hand!
>
> Thanks a lot.
>
>
>

You still need to figure out what xxxxxxxxxxx is-- why not just put it in a
file and be done with it? It's going to be the same loop through the
directories in your file, the same search and replace statement, and the
same output commands.

Scott

[ Why was this crossposted to comp.soft-sys.matlab? ]

"lucy" <> writes:

> I have a quick question, how to change a string "abcd" to another string
> "xyabcd" in all the *.m (text) files under current directory?

perl -pi.bak -e's/abcd/xyabcd/g' *.m

See the docs for the -i flag in perlrun(1) for more information.

----ScottG.

lucy wrote:
> I have a quick question,
> ...
> I defintely can write a perl script to do this. But I remember
> there is a most simple way of doing this using Perl.
>
> It is just "Perl xxxxxxxxxxxxxxxx" a command line with some
> options...
>
> It just escaped my memory,

And the first thing you came to think of was asking lots of people (in
two!! newsgroups) for help.

> anybody knows how to do that please give me a hand!

Give you a hand with what? Looking it up in and reading the docs for
you??

--
Gunnar Hjalmarsson
Email: http://www.gunnar.cc/cgi-bin/contact.pl

"Scott W Gifford" <> wrote in message
news:...
>[ Why was this crossposted to comp.soft-sys.matlab? ]
>
> "lucy" <> writes:
>
>> I have a quick question, how to change a string "abcd" to another string
>> "xyabcd" in all the *.m (text) files under current directory?
>
> perl -pi.bak -e's/abcd/xyabcd/g' *.m
>
> See the docs for the -i flag in perlrun(1) for more information.
>
> ----ScottG.

That's great! That's exactly I want. But how can I make this work for all
subdirectories recursively?

thanks a lot

"lucy" <> wrote in message
news:ch5bgv$rs3$...
>
> "Scott W Gifford" <> wrote in message
> news:...
>>[ Why was this crossposted to comp.soft-sys.matlab? ]
>>
>> "lucy" <> writes:
>>
>>> I have a quick question, how to change a string "abcd" to another string
>>> "xyabcd" in all the *.m (text) files under current directory?
>>
>> perl -pi.bak -e's/abcd/xyabcd/g' *.m
>>
>> See the docs for the -i flag in perlrun(1) for more information.
>>
>> ----ScottG.
>
> That's great! That's exactly I want. But how can I make this work for all
> subdirectories recursively?
>
> thanks a lot
>

And how to make it work even for filenames and directory names...?

lucy <> wrote in comp.lang.perl.misc:
>
> "lucy" <> wrote in message
> news:ch5bgv$rs3$...
> >
> > "Scott W Gifford" <> wrote in message
> > news:...
> >>[ Why was this crossposted to comp.soft-sys.matlab? ]
> >>
> >> "lucy" <> writes:
> >>
> >>> I have a quick question, how to change a string "abcd" to another string
> >>> "xyabcd" in all the *.m (text) files under current directory?
> >>
> >> perl -pi.bak -e's/abcd/xyabcd/g' *.m
> >>
> >> See the docs for the -i flag in perlrun(1) for more information.
> >>
> >> ----ScottG.
> >
> > That's great! That's exactly I want. But how can I make this work for all
> > subdirectories recursively?
> >
> > thanks a lot
> >
>
> And how to make it work even for filenames and directory names...?

Want it to milk the cows in the morning too?

Anno

lucy wrote:

> That's great! That's exactly I want. But how can I make this work for all
> subdirectories recursively?

Put the one-liner into a sub in a file, and 'use File::Find;'.
-Joe