一、引言SCO UNIX 系统在我国的银行、证券、税务、铁路、商业、民航等企事业单位广泛地使用。就西南空管局来说,气象中心很早就开始使用 UNIX;航管站 ADS 系统及即将使用的 EUROCAT 雷达系统等等都在使用 UNIX。在维护 UNIX 系统时应规范操作,以确保系统的正常运行,如果系统受损,比如误删某个系统文件,致使系统无法启动,这时如果采取重新安装系统的方法,势必造成用户数据的丢失,而且,重新安装 UNIX 操作系统和应用软件及调 I. Introduction SCO UNIX system in China’s banks, securities, taxation, railway, commercial, civil aviation and other enterprises and institutions widely used. For Southwest Air Traffic Control, the Meteorological Center started using UNIX very early on; UNIX was used by ADS systems at ATCs and the forthcoming EUROCAT radar system. In the maintenance of UNIX systems should regulate the operation to ensure the normal operation of the system, if the system is damaged, such as accidental deletion of a system file, resulting in the system can not be started, then if you re-install the system will inevitably result in the loss of user data And, reinstall the UNIX operating system and application software and tune it