zsh入門パート２ - 暇つぶし2ch

zsh入門パート２ ..

606:名無しさん＠お腹いっぱい。
03/09/06 03:21
>>581
echo ${(P)hoge} ${(P)${hoge}}

zshexpnのParameter Expansion FlagsのPのところに
そのものずばりの例がある。

| P This forces the value of the parameter name to be interpreted as
| a further parameter name, whose value will be used where appro-
| priate. If used with a nested parameter or command substitution,
| the result of that will be taken as a parameter name in the same
| way. For example, if you have `foo=bar' and `bar=baz', the
| strings ${(P)foo}, ${(P)${foo}}, and ${(P)$(echo bar)} will be
| expanded to `baz'.

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