知行合一，止于至善
千里之行，始于足下；合抱之木，生于毫末；九层之台，起于累土shell $*和$@区别
1月 9, 2018 |
Nix.Huang
当没有双引号时，$*和$@扩展为每个位置参数
出现在双引号中，"$*"扩展为将所有位置参数通过IFS(通常为空格)拼接为单个参数，而"$@"任然扩展为每个位置参数
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#/bin/sh echo "------test for \$*--------" for x in $*; do echo "$x---"; done echo "------test for \"\$*\"--------" for x in "$*"; do echo "$x---"; done echo "------test for \$@--------" for x in $@; do echo "$x---"; done echo "------test for \"\$@\"--------" for x in "$@"; do echo "$x---"; done |
./test.sh hello javacoder.cn
------test for $*--------
hello---
javacoder.cn---
------test for "$*"--------
hello javacoder.cn---
------test for $@--------
hello---
javacoder.cn---
------test for "$@"--------
hello---
javacoder.cn---
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