摘要：
ls -l|grep ^d 阅读全文
摘要：
[maijunjin@localhost testGrep]$ grep 1 ./ #没有结果[maijunjin@localhost testGrep]$ grep 1 . #没有结果[maijunjin@localhost testGrep]$ ... 阅读全文
摘要：
st_atime Time whenfile data was last accessed. Changedbythe followingfunctions:creat(),mknod(),pipe(), utime(2), andread(2).st_mtime Time whendata w... 阅读全文