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- @echo off
- cls
- if %1 == b: goto b
- if %1 == B: goto b
- if %1 == c: goto c
- if %1 == C: goto c
- goto prob
- :b
- echo Place the master backup of your DOS 3.00 diskette into drive B:
- echo ----------------
- pause
- :c
- cls
- echo The new BACKUP.COM file will be replaced in all directories on
- echo the target disk %1. I17.COM will be copied to the root directory
- echo of the target disk %1.
- echo ----------------
- pause
- replace a:\backup.com %1\ /s
- copy a:\i17.com %1\
- cls
- echo The new BACKUP.COM and I17.COM files have been installed
- echo on the target disk %1.
- echo ----------------
- goto end
- :prob
- cls
- echo You have not specified a valid drive letter. The only valid drives are B:
- echo and C:. You must include the colon. Please try again.
- echo ----------------
- :end
- echo on