What is the difference between the commands test -e path and test -f path?
What is the difference between the commands test -e path and test -f path?
How can the existing environment variable FOOBAR be suppressed for the execution of the script./myscript only?
How can the existing environment variable FOOBAR be suppressed for the execution of the script./myscript only?
what is the meaning of 12942?
When the command echo $$ outputs 12942, what is the meaning of 12942?
What output will the following command produce?
What output will the following command produce? seq 1 5 20
Which of the following words is used to restrict the records that are returned from a SELECT SQL query based o
Which of the following words is used to restrict the records that are returned from a SELECT SQL query based on a
supplied criteria for the values in the records?
Which of the following commands lists all defined variables and functions within Bash?
Which of the following commands lists all defined variables and functions within Bash?
Which of the following SQL queries counts the number of occurrences for each value of the field order_type in
Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table
orders?
What is the purpose of the file /etc/profile?
What is the purpose of the file /etc/profile?
What command displays all aliases defined in the current shell?
What command displays all aliases defined in the current shell? (Specify the command without any path information)
Which of the following are requirements in order to run a shell script like a regular command from anywhere in
Which of the following are requirements in order to run a shell script like a regular command from anywhere in the
filesystem? (Choose THREE correct answers.)