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Create tr.md

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tr is a small utility for translating characters in text documents
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Daniel Senff 2015-03-12 09:41:54 +01:00
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# tr
> translate characters - run replacements based on single characters
- replace all occurrences of a character in a file, and print the result
`tr {{find_character}} {{replace_character}} < {{filename}}`
Translate the contents of the file to upper-case, prints result.
`tr "[:lower:]" "[:upper:]" < {{filename}}`
Strip out non-printable characters from the file, prints result.
`tr -cd "[:print:]" < {{filename}}`