|Assignment: #assessment5||Due: 12/02/02018||Points: 6|
The _______ command is used to display a list of all environment variable name/value pairs.
Two files having the same i-node number, may have been hard-linked using the _________ command.
Assume a file named
foo does not exist.
Which one of the following command-lines does not result
in the creation of an empty file named
a. touch foo b. < foo c. > foo d. >> foo e. don't know
The rmdir command supports a
to recursively remove directories.
a. false b. true c. don't know
Record the command-line used to print the first 15 lines
The __________ command can be used to display the value of an environment variable.
The __________ command can be used to display the type of data stored in a file.
The _____ option on the cal command is used to display julian dates.
If the command-line mv a b c d
executes without error, then we know that the last argument
d is a _______________.
Record the command-line that will rename
The ______ shell operator is used on the command-line to re-direct the standard input stream.
Given the command-line
cmd1 | cmd2
The pipe operator causes the standard _______ of
cmd1 be become the standard
Un-wanted command output (both standard output and standard error) can be re-directed to the _____ character device file.
echo -n hello | wc -c
prints the value ___________________.
The _____ shell operator is used to append the output of a command to the end of a file.
Executed by a regular user, the command-line
touch /etc/me fails because of
Record the command-line used to set permissions to
rw-r----- for file
Record the command-line that prints the exit status of the last command executed.