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回复 1# Mr_Yao
${parameter%word}
${parameter%%word}
The word is expanded to produce a pattern just as in pathname expansion. If the pattern matches
a trailing portion of the expanded value of parameter, then the result of the expansion is the
expanded value of parameter with the shortest matching pattern (the ââ%ââ case) or the longest
matching pattern (the ââ%%ââ case) deleted. If parameter is @ or *, the pattern removal opera-
tion is applied to each positional parameter in turn, and the expansion is the resultant list.
If parameter is an array variable subscripted with @ or *, the pattern removal operation is
applied to each member of the array in turn, and the expansion is the resultant list. |
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