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6 questions
0votes
1answer
58views
replace any in txt file excipt range of letters
Please I have a txt file, I want to replace anything to _ except this range of letters [\0600-\06FF]. like sed 's/^[\0600-\06FF]/_/g' < a. txt > b. txt not work with me.
- 47
1vote
1answer
73views
Replace each letter in a .txt with the letter six positions later
I want to "encrypt" a .txt by replacing each letter with the letter six positions later. What I have right now is: tr [:alpha:] ??? < myfile.txt But I don't know what to put in ??? ... Any help ...
- 11
7votes
1answer
983views
Is it possible to replace duplicates of a character with one character using tr
I'm trying to take all occurrences of # and if they are consecutive replace them with just one #. e.g. ab ### cde fghi## jklm would become: ab # cde, fghi# jklm My initial goal was to replace all ...
1vote
1answer
4kviews
How to replace double new line with single using tr?
Given a text, $ cat a.txt Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam at magna sed libero accumsan ultrices. Proin varius tortor risus, at pulvinar quam auctor vitae. Etiam iaculis ...
- 115
17votes
2answers
73kviews
Fastest & Most Core way to replace "\r\n" with "\n" in a file?
I suppose tr is a more core method and thus probably a faster way to replace things within a given file. However tr can only replace equal amounts of characters. meaning... 2 characters can only be ...
- 173
5votes
3answers
1kviews
how to emulate "replace a b b a" with a sed?
I am trying to emulate a replace command which swaps two characters, with a sed script, but the obvious choice: sed -e 's/a/b/g' -e 's/b/a/g' does no work. Can you point me how to do it correctly?
- 393
