UNIX for Advanced & Expert Users

Hi,

In a shell script i am running a command which is asking for input.

How can i give that automatically.

I have done this before but for the time being can't recall.
Was something like <|

Thanks

The "<" operator is used to pipe a file to stdin for a program.

The "|" operator is used to pipe the output of another program into the input of a program.

The "<<" operator pipes the following data upto a end of string token

eg

Code:

cat <somefile

or

Code:

echo "banana" | cat

or

Code:

cat <<EOF
hello world
EOF

Yes,

Okay i'll give an example.

Suppose i want to run the format command via shell script.

Now it will ask for inputs, that i want to automatically give it.

Lemme give the exact situation.

Its the "cvs login" command.


Want to do a lot of things in a shell script.
The first step is the login of cvs.

It asks for input, how can i give it automatically.

logins are a different kettle of fish as often instead of reading stdin they read from /dev/tty.

That said, I thought cvs logins were persistent.

So,

Isn't there any option to make them read from dev/tty

We can redirect the same to dev/tty

spawn ssh <xserver> <a command>
expect "password:"
send "$password\r"
expect eof


you gotta have /usr/lib/spawn /usr/lib/expect /usr/lib/send
just goto the prompt and type
whereis spawn; whereis expect; whereis send..

I am looking for these files too.

If you are in HP-UX, you probably get this error message and your <expect> will not work
/usr/lib/dld.sl: Can't find path for shared library: libtcl.sl
/usr/lib/dld.sl: No such file or directory