Another approach to this is to use the "tr" command: 
$Doc =~ tr/\//\\/;

[download]
The "tr" command is usually more efficient for character substitutions. You can also use a delimiter other than slash (/) as GrandFather suggested. In this instance, I prefer using paired delimiters like: 
$Doc =~ tr{/}{\\};

[download]

In reply to Re: Regular Expressions Problem by eye
in thread Regular Expressions Problem by SteveS832001

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