Ptt 大爆卦 | Tr Words - 前往 https://unix.stackexchange.com/questions/92477/replace-exact-word-with-another-in-shell-with-tr-command

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Replace exact word with another in shell with tr command

This task is easier with GNU sed : $ sed -i 's/ali/ALI/' file.txt. because tr operates on character sets rather than strings.

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