TR(1)

✨ TR(1) — bestie, it's the tr manual ✨

okay so picture this: you've got a manual page, right? it's called tr, it lives in the General Commands Manual section (section 1, the "commands you actually type" section 💅), and it is literally here to translate or delete characters. iconic behaviour honestly.

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🌸 NAME 🌸

tr — translate or delete characters 🦋

💖 SYNOPSIS 💖

tr [OPTION]... SET1 [SET2]

🎀 DESCRIPTION 🎀

Translate or delete characters. that's the whole job description bestie, and she does it flawlessly ✨

👑 OPTIONS 👑

• -c, --complement — use the complement of SET1. like, the opposite set? yeah. the leftovers. the ones not in SET1 🫶
• -d, --delete — delete characters in SET1, do not translate. so long, farewell 🙈
• -s, --squeeze-repeats — replace each sequence of a repeated character that is listed in the last specified SET, with a single occurrence of that character. yes bestie, squeezing the dupes together into one single slay 💅
• -t, --truncate-set1 — first truncate SET1 to length of SET2. cut her down to size ✂️
• -h, --help — Print help. we love a helpful queen 🌈
• -V, --version — Print version. receipts, periodt ⭐
• [sets]

🦋 EXTRA 🦋

Translate, squeeze, and/or delete characters from standard input, writing to standard output. she reads from stdin, she writes to stdout, she does not play about it 😭🔥

💜 VERSION 💜

v(uutils coreutils) 0.12.0 — no cap 🫶

🌈 EXAMPLES 🌈

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:]"

ok important lil disclaimer bestie: The examples are provided by the tldr-pages project <https://tldr.sh> under the CC BY 4.0 License. Please note that, as uutils is a work in progress, some examples might fail. so if one of these lowkey flops, it's not you, it's the work-in-progress energy 😭💀

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and that's the whole page, you ate it 💖 mwah. this lil masterpiece was served fresh on 2026-09-25, brought to you by the General Commands Manual crew — TR(1), forever our main character 👑✨