How do I find previous commands in unix?
what is the difference between pipe(|) and tee command..
What is the unix command to confirm a remote host is alive or not?
Can you explain a little bit about command substitution?
what is the default permission for /etc/shadow file in UNIX
what will be the output of ls ~/..
why unix commands can be divided into internal and external commands?
The rm command removes links to file. What does this mean? How then is a file deleted from the file system?
What is the command to check ports active in UNIX?
Give the command to display space usage on the UNIX file system.
what is mount ,tell me about mount ,how can u use in real time project??
What are awk commands?
Give the command for finding the current date.