tr
Translate characters: run replacements based on single characters and character sets. More information: https://www.gnu.org/software/coreutils/tr.
- Replace all occurrences of a character in a file, and print the result:
tr {{find_character}} {{replace_character}} < {{filename}}
- Replace all occurrences of a character from another command's output:
echo {{text}} | tr {{find_character}} {{replace_character}}
- Map each character of the first set to the corresponding character of the second set:
tr '{{abcd}}' '{{jkmn}}' < {{filename}}
- Delete all occurrences of the specified set of characters from the input:
tr -d '{{input_characters}}' < {{filename}}
- Compress a series of identical characters to a single character:
tr -s '{{input_characters}}' < {{filename}}
- Translate the contents of a file to upper-case:
tr "[:lower:]" "[:upper:]" < {{filename}}
- Strip out non-printable characters from a file:
tr -cd "[:print:]" < {{filename}}
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