3.3 Turning Commands into a Script (weight: 4) LINUX-ESSENTIALS Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is the basic syntax of a while loop in Bash?

   • Awhile [ condition ] { commands }
   • Bwhile (condition) { commands }
   • Cwhile [ condition ]; do commands; done
   • Dwhile condition do commands end
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2. 7foundation · easy

   In Bash, what does the special variable $? contain?

   • AThe exit status of the last executed command.
   • BThe number of arguments passed to the script.
   • CThe name of the current script.
   • DThe process ID of the current shell.
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4. 8foundation · easy

   What exit status indicates that a command completed successfully in Linux?

   • A0
   • B1
   • C255
   • D-1
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5. 9foundation · easy

   Which command-line option for bash enables a trace of script execution, showing each command as it is executed?

   • A-x
   • B-v
   • C-u
   • D-e
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6. 10foundation · easy

   Inside a script, which command can be used to enable debugging trace from that point onward?

   • Aset -x
   • Bset +x
   • Cdebug on
   • Dtrap -x
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