What I meant was that my code can be dropped in the middle of a program, while to use the switches in the middle of a program you would have to spawn a new perl with those switches. 
#!/usr/bin/perl -w
.....
system(q#perl -i.bak -p -e '$_ = uc'#);
.....

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In reply to Re: Re: Re: converting files in place by repson
in thread In-place editing of files (was: general perl question) by cghost23

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