1
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?
nobody
Posted 2011-08-21T19:00:50.397
Reputation: 11
4
This is exactly what the sed program was made for.
psusi
Posted 2011-08-21T19:00:50.397
Reputation: 7 195
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. – barlop – 2011-08-21T19:25:12.660
Or ex. Or indeed tr if using sed to change case is seen as hard (which, with GNU sed at least, it really isn't). – JdeBP – 2011-08-24T00:00:47.130
1
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)
Joe Internet
Posted 2011-08-21T19:00:50.397
Reputation: 5 145
Virtually any scripting language can handle this easily: AutoIt, Python, Perl, etc. – MaQleod – 2011-08-21T19:02:18.267
I tried this with python but the logic has not been working properly so now I need a tool. – nobody – 2011-08-21T19:06:03.150
Try notepad++, you can do batch string replacement over many files: http://www.makeuseof.com/tag/how-to-find-and-replace-words-in-multiple-files/, or you can post your Python code and have a mod move this over to StackOverflow.com and they will help you out there.
– MaQleod – 2011-08-21T19:07:56.523