While scripts have the advantages of
1) flexibility to change the of script
2) and being more portable.
Compiled executables have the advantages of
1) less memory footprint
2) less execution time.
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
What command would send the output of cmd1 to the input of cmd2? a) cmd1 | cmd2 b) cmd1 || cmd2 c) cmd1 && cmd2 d) cmd1 ; cmd2 e) cmd1 cmd2
What is the output of this program?
#!/bin/sh
var="google"
san_function() {
var="Linux"
echo $var
}
san_function
exit 0
a) google
b) Linux
c) command not found
d) none of the mentionedWhat is the output of this program?
#!/bin/bash
function san_function1 {
echo "This is first function"
}
san_function2() {
echo "This is second function"
}
san_function1
san_function2
exit 0
a) This is the first function
b) This is the second function
c) This is the first function
This is the second function
d) program will generate error because first function definition is not correctWhat is the output of this program?
#!/bin/sh
san_function1() {
a=5
echo "This is the first function"
san_function2
}
san_function2() {
echo "This is the second function"
san_function3
}
san_function3() {
echo "This is the third function"
}
san_function1
exit 0
a) This is the first function
This is the second function
This is the third function
b) This is the first function
This is the third function
This is the second function
c) This is the second function
This is the first function
This is the third function
d) This is the third function
This is the first function
This is the second functionWhich one of the following statement is true about variables in shell? a) variables do not require declaration before assigning value to them b) variables are case sensitive c) to extract the contents of a variable, we have to provide the variable a preceding $ d) all of the mentioned
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