DOT-Files/Gentoo/gentooamd/home/user/.tldrc/tldr/pages/common/tr.md

tr

Translate characters: run replacements based on single characters and character sets. More information: https://www.gnu.org/software/coreutils/manual/html_node/tr-invocation.html.

• Replace all occurrences of a character in a file, and print the result:

tr < {{path/to/file}} {{find_character}} {{replace_character}}

• 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 < {{path/to/file}} '{{abcd}}' '{{jkmn}}'

• Delete all occurrences of the specified set of characters from the input:

tr < {{path/to/file}} {{[-d|--delete]}} '{{input_characters}}'

• Compress a series of identical characters to a single character:

tr < {{path/to/file}} {{[-s|--squeeze-repeats]}} '{{input_characters}}'

• Translate the contents of a file to upper-case:

tr < {{path/to/file}} "[:lower:]" "[:upper:]"

• Strip out non-printable characters from a file:

tr < {{path/to/file}} {{[-cd|--complement --delete]}} "[:print:]"