Unix programming

1. The option -i used with grep command ignores case for?
3. operator to temporarily save the out and use it as an input in the next command
6. To start using chown command, we first execute this command that prompts # on the command prompt
9. The first character in the attribute of this file type is a - .
10. $ls[!A-Z]?? matches filename with these many characters
11. file that contains set of instructions which are performed when a user logs in
13. increments by one each time an instance of bash is created
14. wild card set of shell, used to match any number of strings

2. command used to display end of the file
4. Standard stream 2 in context of redirection denotes
5. $ls.???* lists these type of files in your directory.
6. while using ls chap? command, it replaces these many characters?
7. the seventh field of /etc/password is
8. command used to have a two way communication
10. command used to save the standard output in a file as well as display on terminal
12. alter the file permission
15. the action carried out using two greater than symbols (>>)