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:
Which of the following GNU commands would be the most likely command you’d use to find the
system load average?
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?
You have a text file with tab-separated values, but your application needs them space-separated.
What command would you use from the Bash shell to achieve this? Please fill in the command
only, without any options.
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?
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 ?
To prevent a command run as root from sending both standard out (stdout) and standard error
(stderr) to any terminal or other file or device, which of the following strings should be appended to