715.6 Customize or Write Simple Scripts (weight: 2) BSD-SPECIALIST Practice Questions (Page 5)

Questions 21–23

1. 21foundation · easy

   Which statement is used to match a variable against multiple patterns and execute the corresponding block?

   • Awhile
   • Bcase
   • Cif-then-else
   • Dfor
   Reveal Solution Discussion Select an answer first
2. 22application · medium

   A script runs a command that sometimes fails. The administrator needs the script to print a clear error message and stop immediately if the command fails, but continue otherwise. Which approach is most robust?

   • Acommand if [ $? -ne 0 ]; then echo "Command failed" exit 1 fi
   • Bcommand; echo $?
   • Ccommand && exit 1
   • Dcommand || echo "Command failed"
   Reveal Solution Discussion Select an answer first
3. 23foundation · easy

   Which wildcard pattern matches any single character in a filename?

   • A{}
   • B*
   • C?
   • D[]
   Reveal Solution Discussion Select an answer first