Route command allows you to make manual entries into the
network routing tables. The route command distinguishes
between routes to hosts and routes to networks by
interpreting the network address of the Destination
variable, which can be specified either by symbolic name or
numeric address. The route command resolves all symbolic
names into addresses
From where would the read statement read if the following statements were executed? exec < file1 exec < file2 exec < file3 read line a) It would read all the files b) It would not read any files c) It would read all the files in reverse order d) It would read only file3
Which of these is the correct method for appending "foo" in /tmp/bar file? a) echo foo > /tmp/bar b) echo foo >> /tmp/bar c) echo foo | /tmp/var d) /tmp/bar < echo foo
Executing cat /etc/password > /dev/sda as superuser will a) Write data into a regular file called /dev/sda b) Write data to the physical device sda c) Create a temporary file /dev/sda and write data to it d) None of the above
Which variable contains last background job process id a) $* b) $? c) $$ d) $!
The $ variables in a shell script context designates a) The runtime of the script b) Number of command line arguments c) PID of the shell running the script d) The exit status of the shell script
Which command can be used to test various file attributes a) if b) file c) test d) type
What is the output of the following command for bash shell echo linux $0 a) linux echo b) linux linux c) linux bash d) linux
? Specifies a) one or more character b) zero or more charecter c) one character d) None of the above
Which variable will display the list of the positional parameters? a) $# b) $* c) $? d) $$
The keyword 'local' is used a) to define a variable within a function for its local scope b) to redefine any global variable c) this is not a valid keyword d) none of the mentioned
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