What does the “cat ‘$TEST’ ” command do?
What does the following command do?
cat ‘$TEST’
Which the command foo to take its input from the file foobar and send its output to the program bar
You want the command foo to take its input from the file foobar and send its output to the program bar.
Which of the following command lines will do this?
Which command will print to standard out only the lines that do not begin with # (pound symbol) in the file fo
Which command will print to standard out only the lines that do not begin with # (pound symbol) in the file foobar?
What command will remove duplicate lines from a sorted file?
What command will remove duplicate lines from a sorted file?
Which command line option would you use to restrict the GNU find command to searching a particular number of s
Which command line option would you use to restrict the GNU find command to searching a particular number of subdirectories?
What is the disadvantage of using the command kill -9 ?
What is the disadvantage of using the command kill -9 ?
Which of the following commands is equivalent to kill 1234?
Which of the following commands is equivalent to kill 1234?
What command would execute cmd1 followed by cmd2, regardless of the exit status of cmd1?
What command would execute cmd1 followed by cmd2, regardless of the exit status of cmd1?
What command changes the priority of the process running with process id of 12345 to the highest priority?
What command changes the priority of the process running with process id of 12345 to the highest priority?
You want to save vi changes to the file myfile with :w!, but vi complains it can not write to the file. To do
You want to save vi changes to the file myfile with :w!, but vi complains it can not write to the file. Therefore, you want to check the write permissions on the file.
To do this without leaving vi, you type: