What does the command ' $who | sort –logfile > newfile' do?
How does one process we can start an executable file? How to get the PID process, which we started?
Can you explain a little bit about command substitution?
What is updatedb?
how to sort the content of the file based on numeric values
In Unix file permissions what does the second field denotes?
What does touch command do in unix?
their is a file1,file2 and i want to append file1 data to file2?
What does the command '$ls | wc –l > file1' do?
What is the difference between grep and grep?
what is the cmd to display the last exit status in UNIX?
What is pipe command in unix?
How would you change all occurrences of a value using VI?