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shell中实现字母与ASCII码之间的转换
source link: https://www.lujun9972.win/blog/2018/08/04/shell%E4%B8%AD%E5%AE%9E%E7%8E%B0%E5%AD%97%E6%AF%8D%E4%B8%8Eascii%E7%A0%81%E4%B9%8B%E9%97%B4%E7%9A%84%E8%BD%AC%E6%8D%A2/index.html
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shell中实现字母与ASCII码之间的转换 - 暗无天日
shell中实现字母与ASCII码之间的转换
shell中似乎没有直接的命令可以实现字母与ASCII码之间的转换。
不过通过printf我们还是可以做到这一点的。
ASCII码转字母:
function chr() {
[ "$1" -lt 256 ] || return 1
printf "\\$(printf '%03o' "$1")"
}
chr 68
D
字母转ASCII码
ord() {
LC_CTYPE=C printf '%d' "'$1"
}
ord a
97
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