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Converting string to lower case in Bash shell scripting - Stack Overflow
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日期：2025-09-16
In Bash 4: To lowercase $ string="A FEW WORDS" $ echo ${string,} a FEW WORDS $ echo ${string,,} a few words $ echo ${string,,[AEIUO]} a FeW WoRDS $ string="A Few Words" $ declare -l string $ string=$string; echo $string a few words To uppercase $ string="...看更多
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