摘要：
scnzzh@ZUBT:~$ printf %d "A" bash: printf: A: invalid number 0scnzzh@ZUBT:~$ printf %d "'A" 65scnzzh@ZUBT:~$ printf "\\$(printf %o 65)" Ascnzzh@ZUBT:~
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摘要：
If you have a known octal or hexadecimal value (at script-writing time), you can just use printf: # POSIX printf '\047\n' # bash/ksh/zsh and a few oth
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