"Exp script? (Urgent) " I wanted to write a script that automatically derived database. Sunday so totally derivative, has done derived Wednesday, the remaining increments are derived. The following two basic orders : Exp system/manager inctype=complete file=20050807.dmp Exp system/manager inctype=incremental file=20050810.dmp Exp system/manager inctype=cumulative file=20050811.dmp I want my file names are automatically change the law, such as : automatic admission system one time or file name I was using the system aix5l Experts who help me! ! ! ! ! In this Xianxie! ! ! ! ! ! ! ! ! "Exp script? (Urgent) " I wrote the script as follows : (in the Linux implementation) #! /bin/sh Q 'date + "%m%d"' Exp system/manager inctype=complete file=22$q.dmp But I 22date + is the result of the implementation of "%m%d.dmp he did not do so on Japan The change experts who help me "Exp script? (Urgent) " Use back quote. `date +%m%d` "Exp script? (Urgent) " --> Single quotation marks and note the distinction between anti-quotation marks! "Exp script? (Urgent) " Exp incremental backup instead of the traditional sense of the recommended daily total incremental derived ~ ~ "Exp script? (Urgent) " Thank you solve the problem [ Closed window ]