The mechanisms for producing these output files (and cleaning them up, when necessary) are useful tools for almost any UNIX or Linux writer, developer, or system administrator.
产生这些输出文件(以及在必要时清理它们)的机制对于几乎所有UNIX或Linux作者、开发人员或系统管理员都是有用的工具。
At some point, every Linux or UNIX systems administrator needs to unmount a partition in response to some emergency or simply to remove a device such as a mounted CD-ROM or DVD.
有时候，为了应对一些紧急情况或者删除挂载的CD - ROM或DVD等设备，Linux或UNIX系统管理员需要卸载分区。
At some point, every Linux or UNIX systems administrator needs to unmount a partition in response to some emergency or simply to remove a device such as a mounted CD-ROM or DVD.
有时候，为了应对一些紧急情况或者删除挂载的CD - ROM或DVD等设备，Linux或UNIX系统管理员需要卸载分区。
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