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Full Discussion: write value to a file
Top Forums UNIX for Dummies Questions & Answers write value to a file Post 302275501 by dndoon on Saturday 10th of January 2009 07:40:36 PM
Old 01-10-2009
i'm using sh command to run my script...

If the file is exists before,,, and im trying to overwrite it , the code is still valid or i have to change something !!!

because i used the same code in another place trying to write a value in a file just created and it works fine..

i appreciate your reply 'redoubtable'

Smilie
 

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WRITE(1)						    BSD General Commands Manual 						  WRITE(1)

NAME
write -- send a message to another user SYNOPSIS
write user [ttyname] DESCRIPTION
The write utility allows you to communicate with other users, by copying lines from your terminal to theirs. When you run the write command, the user you are writing to gets a message of the form: Message from yourname@yourhost on yourtty at hh:mm ... Any further lines you enter will be copied to the specified user's terminal. If the other user wants to reply, they must run write as well. When you are done, type an end-of-file or interrupt character. The other user will see the message 'EOF' indicating that the conversation is over. You can prevent people (other than the super-user) from writing to you with the mesg(1) command. If the user you want to write to is logged in on more than one terminal, you can specify which terminal to write to by specifying the termi- nal name as the second operand to the write command. Alternatively, you can let write select one of the terminals - it will pick the one with the shortest idle time. This is so that if the user is logged in at work and also dialed up from home, the message will go to the right place. The traditional protocol for writing to someone is that the string '-o', either at the end of a line or on a line by itself, means that it's the other person's turn to talk. The string 'oo' means that the person believes the conversation to be over. SEE ALSO
mesg(1), talk(1), wall(1), who(1) HISTORY
A write command appeared in Version 1 AT&T UNIX. BSD
June 6, 1993 BSD
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