Question

11. (2 pts) Clearly explain the difference in output for the following 2 commands. Do not explain what happened, but rather the "WHY" behind what happened and therefore the difference: echo SHOME echo \SHOME 12. (2 pts) Clearly explain why the grep student command hangs when entered as a command by itself, but does not hang when on the right side of a pipe operator: If you do enter the grep student command, how do you get out of this hanging condition: (which keystrokes)? 13. (2 pts) Clearly explain what /dev/null is used for and provide a command example using /dev/null: Command example: 14. (2 pts) The command chmod u+x file1 runs but does not give any error output or good output. Other than checking the file permissions with the ls command, what command can you run to see if this command was successful (at least the syntax) or not:

          11. (2 pts) Clearly explain the difference in output for the following 2 commands. Do not explain
what happened, but rather the "WHY" behind what happened and therefore the difference:
echo SHOME
echo \SHOME
12. (2 pts) Clearly explain why the grep student command hangs when entered as a command by itself, but does not
hang when on the right side of a pipe operator:
If you do enter the grep student command, how do you get out of this hanging condition: (which keystrokes)?
13. (2 pts) Clearly explain what /dev/null is used for and provide a command example using /dev/null:
Command example:
14. (2 pts) The command chmod u+x file1 runs but does not give any error output or good output. Other than checking
the file permissions with the ls command, what command can you run to see if this command was successful (at
least the syntax) or not:

11. (2 pts) Clearly explain the difference in output for the following 2 commands. Do not explain
what happened, but rather the "WHY" behind what happened and therefore the difference:
echo SHOME
echo 12. (2 pts) Clearly explain why the grep student command hangs when entered as a command by itself, but does not
hang when on the right side of a pipe operator:
If you do enter the grep student command, how do you get out of this hanging condition: (which keystrokes)?
13. (2 pts) Clearly explain what /dev/null is used for and provide a command example using /dev/null:
Command example:
14. (2 pts) The command chmod u+x file1 runs but does not give any error output or good output. Other than checking
the file permissions with the ls command, what command can you run to see if this command was successful (at
least the syntax) or not:

Added by Kelli L.

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