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I'm working through the examples in Jeffrey E. F. Friedl's book 'Mastering
Regular Expressions, 2nd Ed.'. I'm trying to work the example at the top of
p. 53, but I'm attempting it in a command prompt window (I'm using Windows
2000 pro). I enter:
perl -p -i -e 's/sysread/read/g' substitute.txt
I get this error message:
"Can't do inplace edit without backup."
Any ideas?
Thanks,
Al
Regular Expressions, 2nd Ed.'. I'm trying to work the example at the top of
p. 53, but I'm attempting it in a command prompt window (I'm using Windows
2000 pro). I enter:
perl -p -i -e 's/sysread/read/g' substitute.txt
I get this error message:
"Can't do inplace edit without backup."
Any ideas?
Thanks,
Al