ClearCase -- element is checked out reserved by another view解决办法

在平时工作中check in 文件的时候经常会遇到别人check out文件并且是reserved，那自己就无法check out该文件了。 比如要check out  altertable.sh 这个文件，结果发现出现以下错误：

kco -c "CBS00236472"  altertable.sh
cleartool: Error: Branch "/main/rl_arbor11.5_03_ebf/rl_celcom_fx1.0_06_ebf" of element is checked out reserved by view moni.celcom_fx1.0_06_ebf_mnt ("milse04:/CCSEVIEW/moni.celcom_fx1.0_06_ebf_mnt").
cleartool: Error: Unable to check out "altertable.sh".
aborting.

那如何把这个别人在别的view check out的文件弄成unreserved的呢？ 从clearcase 手册中查到以下用法： 

unreserve [ –vie⋅w view-storage-dir-pname ] [ –cact ]
[ –c⋅omment comment | –cfi⋅le comment-file-pname | –cq⋅uery
| –cqe⋅ach | –nc⋅omment ] pname ...

于是输入以下命令：
c unreserve -view  milse04:/CCSEVIEW/moni.celcom_fx1.0_06_ebf_mnt   /usr1/arbor/denver_site/install_scripts/altertable.sh

Changed checkout to unreserved for "/usr1/arbor/denver_site/install_scripts/altertable.sh" branch "/main/rl_arbor11.5_03_ebf/rl_celcom_fx1.0_06_ebf".

然后我们就可以正常的check out 和check in了。