(easy question) Find and replace multiple items

[ds4ff1z]

Hello, i'm looking to find and replace multiple characters in a text
file (test1). I have a bunch of random numbers and i want to replace
each number with a letter (such as replace a 7 with an f and 6 with a
d). I would like a suggestion on an a way to do this. Thanks

 

[Mark Peters]

Hello, i'm looking to find and replace multiple characters in a text
file (test1). I have a bunch of random numbers and i want to replace
each number with a letter (such as replace a 7 with an f and 6 with a
d). I would like a suggestion on an a way to do this. Thanks

how about:
'foo bar yd spam joepfd'

Mark Peters

 

[Simon Forman]

Hello, i'm looking to find and replace multiple characters in a text
file (test1). I have a bunch of random numbers and i want to replace
each number with a letter (such as replace a 7 with an f and 6 with a
d). I would like a suggestion on an a way to do this. Thanks

http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/81330

 

[Tim Chase]

Hello, i'm looking to find and replace multiple characters in a text

file (test1). I have a bunch of random numbers and i want to replace
each number with a letter (such as replace a 7 with an f and 6 with a
d). I would like a suggestion on an a way to do this. Thanks

Well, the canonical way would be to use a tool designed to do
transformations:

tr '76' 'fd' < test1.txt > out.txt

However, if it's python you want:

>>> mapping = {'7': 'f', '6': 'd'}
>>> s = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"
>>> ''.join([mapping.get(c, c) for c in s])

'ABCDEFGHIJKLMNOPQRSTUVWXYZ12345df890'

will transform all the items found in "s" according to the
defined mapping.

Or, depending on your string length and the number of items
you're replacing:

may be a better choice. Or maybe they're both lousy choices.
Time it and choose accordingly.

-tkc

 

[ds4ff1z]

Hello, i'm looking to find and replace multiple characters in a text
file (test1). I have a bunch of random numbers and i want to replace
each number with a letter (such as replace a 7 with an f and 6 with a
d). I would like a suggestion on an a way to do this. Thanks

Well, the canonical way would be to use a tool designed to do
transformations:

tr '76' 'fd' < test1.txt > out.txt

However, if it's python you want:

mapping = {'7': 'f', '6': 'd'}
s = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"
''.join([mapping.get(c, c) for c in s])

'ABCDEFGHIJKLMNOPQRSTUVWXYZ12345df890'

will transform all the items found in "s" according to the
defined mapping.

Or, depending on your string length and the number of items
you're replacing:

may be a better choice. Or maybe they're both lousy choices.
Time it and choose accordingly.

-tkc

Thanks for the solutions!