3 echo $E_FLAG "Which system-call library do you want to install for the VAX?
5 libbsd4_1a for Berkeley Unix 4.1
6 libbsd4_2 for Berkeley Unix 4.2 or newer, or Ultrix
7 libsysV_2 for Unix System V
8 Your choice: [$SYSVAX] $E_SFX"
15 libbsd4_1a|libbsd4_2|libsysV_2)
18 *) echo "I do not understand your answer ($SYSVAX). Try again"