Re^2: perl one liner to replace matching string

I tried the below perl one liner to replace the "@Filetyp :" as "@Filetyp :c"

my $ext='c';
qx("perl -p -i -e \"s/(\@Filetyp\\s*?:)/\\1$ext/\" /path/test.c");
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I am already doing it.Could you pls try like above perl one liner to replace the string?

All is well. I learn by answering your questions...

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Re^3: perl one liner to replace matching string
by Athanasius (Archbishop) on Jun 10, 2018 at 08:28 UTC

Ok, I get the same result as you reported. Playing around with it, I had to add two additional backslashes to get it to work as desired (not sure why):

my $ext='c';
qx("perl -p -i.bak -e \"s/(\\\@Filetyp\\s*?:)/\\1$ext/\" ./path/test.c
+");
#                          ^^
[download]

(Note: I also had to specify an extension for the backup file.) This is on Windows; if your O/S is different, it may treat the backslashes differently.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

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Re^4: perl one liner to replace matching string

by Veltro (Hermit) on Jun 10, 2018 at 20:06 UTC

not sure why

Similar findings: here and it was pretty heavily analyzed by AnomalousMonk in the following posts

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Re^4: perl one liner to replace matching string

by vinoth.ree (Monsignor) on Jun 10, 2018 at 16:58 UTC

You are right I am writing this for windows, If it is linux/unix I could have used sed/awk.

All is well. I learn by answering your questions...

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Re^5: perl one liner to replace matching string

by AnomalousMonk (Archbishop) on Jun 10, 2018 at 18:44 UTC

If it is linux/unix I could have used sed/awk.

sed, gawk and many other GNU-ish *nix utilities are available in the UnxUtils port of these utilities to Windoze.

Give a man a fish: <%-{-{-{-<

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