Shell Programming and Scripting

Hi ..please tell me how to modinfy an existing file in a directory, i need commands like to open edit and save n execute the file in BASH. please respond immediately

Please post exactly what you are looking for??????????

I have a file say x and i need to update with some values in it, and check te output. I need the commands to edit the file, save the file , run the file and how to insert the text and delete the text in the file in bash(bourne shell). Please give me these commands. that shud help me.

thanks

Deepti,here are the commands that can help you..
file name is x--

1.. vi x --> file is open in commad mode.
2.. for navigation in vi use these commands-
a. h->to move left
b. j->to move down
c. k-> to move up
d. l-> to go right

3.. To write something in vi you have to press i or a to put u in insert mode or append mode.write something in file.

4.. press x to delete a word,dd to delete a line,r to replace a word.
5.. see man vi ->there are so m any commands to do editing and navigation.
6.. To save press escape :wq ->it will save and exit.
escape :w ->only save
escape :q quit
escape :q! ->quit without save.

Thanks,
Namish