<强>
[root@xuegod72 ~] # echo ${文件# */}
var/log/消息
[root@xuegod72 ~] # echo ${文件# # */}
消息
[root@xuegod72 ~] #文件=/var/log/yum.log/xuegod。txt
(root@xuegod72 ~) # # * echo ${文件。日志/xuegod}
。txt
[root@xuegod72 ~] #文件=/var/log/yum.log/马丁。txt
[root@xuegod72 ~] # echo ${# # *的文件。}
txt
[root@xuegod72 ~] #文件=/var/log/yum.log/马丁。txt
[root@xuegod72 ~] # echo ${文件%/*}
/var/log/百胜。日志
[root@xuegod72 ~] # echo ${文件% %/*}
空值
[root@xuegod72 ~] #文件=/var/log/yum.log/马丁。txt
[root@xuegod72 ~] % # echo ${文件。*}
/var/log/百胜。日志/xuegod
[root@xuegod72 ~] #文件=/var/log/yum.log/xt
[root@xuegod72 ~] % % # echo ${文件。*}
/var/log/百胜
。txt
。txt
。txt
