I need a tool that can open a text file and replace characters in a list with other characters in a list.
For example:
Lets say I have a list of "aA", "aB", and want to replace "aA" with "AA".
What is a software program that could do this easily?
3
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Virtually any scripting language can handle this easily: AutoIt, Python, Perl, etc.– MaQleodAug 21, 2011 at 19:02
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I tried this with python but the logic has not been working properly so now I need a tool.– nobodyAug 21, 2011 at 19:06
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Try notepad++, you can do batch string replacement over many files: makeuseof.com/tag/…, or you can post your Python code and have a mod move this over to StackOverflow.com and they will help you out there.– MaQleodAug 21, 2011 at 19:07
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2 Answers
This is exactly what the sed program was made for.
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well, if he means change lowercase chars to uppercase, then perhaps not so easy with sed. if he means just changing some specifics, like aA to AA, then yes.– barlopAug 21, 2011 at 19:25
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Or
ex. Or indeedtrif usingsedto change case is seen as hard (which, with GNUsedat least, it really isn't).– JdeBPAug 24, 2011 at 0:00
As a Perl one-liner, to replicate sed functionality...
perl -pe " s/aA/AA/g; s/aB/AB/g; " < input.txt > output.txt
This will turn this input.txt...
aA, aA, aA, aA, aA
aB, aB, aB, aB, aB
into this output.txt...
AA, AA, AA, AA, AA
AB, AB, AB, AB, AB
It does this through regular expression substitution...
s(ubstitute)/this-original-string/with-this-new-string/g(lobally)
answered Aug 21, 2011 at 19:24
