shell printf 用法

 $printf "The first program always prints '%s,%s!'\n" Hello world爲何!'出錯？ %s!是沒法識別的 能夠寫成 $printf "The first program always prints '%s,%s' \n" Hello world! printf某些狀況能夠替代echo. 1 #!/bin/bash 2 # printf

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