08-23-2002
9 More Discussions You Might Find Interesting
1. Programming
hi guys, I'have a question 4 u.
Why this code give me the right output (an integer on the stdout):
read(fd,&mpid,sizeof(pid_t));
printf("%d\n",mpid);
Instead this code give me only a blank line:
read(fd,&mpid,sizeof(pid_t));
write(STDOUT_FILENO,&mpid,sizeof(pid_t));
... (2 Replies)
Discussion started by: M3xican
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2. UNIX for Dummies Questions & Answers
Thanks for the comments, but I am still having problems. Certainly I did consult the man pages, but they didn't seem to help. So here is the scenario:
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3. UNIX for Dummies Questions & Answers
hi
nu 2 this forum.,
can any one tell me how to 'talk' to a person on other system who is connected in a network(LAN) via terminal.......
and when to use wall,write and talk..
regards
leenus
:) (1 Reply)
Discussion started by: mr.anilbabu
1 Replies
4. Programming
Hello mates:
I met problem with using read() & write(). I m trying to use read twice on client first time is the size of buffer, 2nd time is the buffer. I think I have to, coz I dnot know file size. So, I write twice on server as well -- 1st, filesize; 2nd, buffer.
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5. UNIX for Dummies Questions & Answers
Hello everyone!!
I have to write a script in unix that reads a file which is in the format:
1%blabla%30
2%blabla2%50
1%blabla3%40
2%blabla4%10
and produce the total quantities of 1 and 2: "1 = 70 2 = 60"
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6. UNIX for Dummies Questions & Answers
If I'm in Vi, write something then try to save & quit. :wq I get: "myvifile" "myvifile" E212: Can't open file for writing Press ENTER or type command to continue It won't let me save... Is it because other users on the network have access to the file also? Or I don't have permission to save? Thanks... (5 Replies)
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7. Shell Programming and Scripting
Hi, I hope the title does not scare people to look into this thread but it describes roughly what I'm trying to do. I need a solution in PHP.
I'm a programming beginner, so it might be that the approach to solve this, might be easier to solve with an other approach of someone else, so if you... (0 Replies)
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8. Shell Programming and Scripting
Hi
What is the syntax for if statement using && and || operator?
if && ] ||
here its giving me an error to this if statement
any suggestion?? (2 Replies)
Discussion started by: Avi
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9. UNIX for Dummies Questions & Answers
How to use MAN to find information about read() and write() function ?
The command "man read" show some rubbish, for example "man open" show great information about function I need. (2 Replies)
Discussion started by: bbqtoss
2 Replies
TALK(1) General Commands Manual TALK(1)
NAME
talk - talk to another user
SYNOPSIS
talk person [ ttyname ]
DESCRIPTION
Talk is a visual communication program which copies lines from your terminal to that of another user.
If you wish to talk to someone on you own machine, then person is just the person's login name. If you wish to talk to a user on another
host, then person is of the form :
host!user or
host.user or
host:user or
user@host
though host@user is perhaps preferred.
If you want to talk to a user who is logged in more than once, the ttyname argument may be used to indicate the appropriate terminal name.
When first called, it sends the message
Message from TalkDaemon@his_machine...
talk: connection requested by your_name@your_machine.
talk: respond with: talk your_name@your_machine
to the user you wish to talk to. At this point, the recipient of the message should reply by typing
talk your_name@your_machine
It doesn't matter from which machine the recipient replies, as long as his login-name is the same. Once communication is established, the
two parties may type simultaneously, with their output appearing in separate windows. Typing control L will cause the screen to be
reprinted, while your erase, kill, and word kill characters will work in talk as normal. To exit, just type your interrupt character; talk
then moves the cursor to the bottom of the screen and restores the terminal.
Permission to talk may be denied or granted by use of the mesg command. At the outset talking is allowed. Certain commands, in particular
nroff and pr(1) disallow messages in order to prevent messy output.
FILES
/etc/hosts to find the recipient's machine
/var/run/utmp to find the recipient's tty
SEE ALSO
mesg(1), who(1), mail(1), write(1)
BUGS
The version of talk(1) released with 4.3BSD uses a protocol that is incompatible with the protocol used in the version released with
4.2BSD.
4.2 Berkeley Distribution November 27, 1996 TALK(1)