Command Output to Standard Input

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Command Output to Standard Input
# 1  
Old 06-03-2009
Error Command Output to Standard Input

Hi All,

How do I provide the output of a command to another command which is waiting for an input from the user ?

Ex : I need to login to a device via telnet. In the script, initially I use the "read" command to get the IP Address, Username and Password of the device from the user. Now, after issuing the telnet command in the script, I want to provide the username output read initially.

How would I do that ? Anyone help me out please.

Thank You.
# 2  
Old 06-03-2009
Check this link , surely helpful for you.

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Homework & Coursework Questions

Removing punctuations from file input or standard input

Just started learning Unix and received my first assignment recently. We haven't learned many commands and honestly, I'm stumped. I'd like to receive assistance/guidance/hints. 1. The problem statement, all variables and given/known data: How do I write a shell script that takes in a file or... (4 Replies)
Discussion started by: fozilla
4 Replies

2. Shell Programming and Scripting

Script output as input for next command

Hi All, Hoping you can help as im in desperate need... I'm very new to unix scripting so apoligies, I have setup an expect script in order to log into a node on our network, This will provide an output as per the below *********** information: *************: n/a TEST IP : n/a ... (18 Replies)
Discussion started by: mutley2202
18 Replies

3. Red Hat

Command understanding the output file destination in case of standard output!!!!!

I ran the following command. cat abc.c > abc.c I got message the following message from command cat: cat: abc.c : input file is same as the output file How the command came to know of the destination file name as the command is sending output to standard file. (3 Replies)
Discussion started by: ravisingh
3 Replies

4. Shell Programming and Scripting

sed command works from cmd line to standard output but will not write to file

Hi all .... vexing problem here ... I am using sed to replace some special characters in a .txt file: sed -e 's/_<ED>_/_355_/g;s/_<F3>_/_363_/g;s/_<E1>_/_341_/g' filename.txt This command replaces <ED> with , <F3> with and <E1> with . When I run the command to standard output, it works... (1 Reply)
Discussion started by: crumplecrap
1 Replies

5. UNIX for Dummies Questions & Answers

Redirect Standard output and standard error into spreadsheet

Hey, I'm completely new at this and I was wondering if there is a way that I would be able to redirect the log files in a directories standard output and standard error into and excel spreadsheet in anyway? Please remember don't use too advanced of terminology as I just started using shell... (6 Replies)
Discussion started by: killaram
6 Replies

6. UNIX for Dummies Questions & Answers

Standard error output to Pipe input - solved

Hi, I want to check a particular word is in standard error output or not. Can I acheive it in single command? For example, Delete file_name 2>error.log cat error.log Output: XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXX Successfully deleted XXXXXXXXXXXXXXXXX where delete is... (2 Replies)
Discussion started by: poova
2 Replies

7. UNIX for Dummies Questions & Answers

problem with output of find command being input to basename command...

Hi, I am triying to make sure that there exists only one file with the pattern abc* in path /path/. This directory is having many huge files. If there is only one file then I have to take its complete name only to use furter in my script. I am planning to do like this: if ; then... (2 Replies)
Discussion started by: new_learner
2 Replies

8. Shell Programming and Scripting

Using output to input another command

Hi guys. Is it possible (I'm sure it is) to use the output of a simple 'ls' command as input of another command 'tail'. It is not really the output of the 'ls'. I have to useeach line of the output. This is the first command... ls *myFile*021308* Which it outputs many filenames. For each... (3 Replies)
Discussion started by: rodrimuino
3 Replies

9. Shell Programming and Scripting

Using Output from one command as input to another

This site has been very helpful thus far.. I thank you all in advance for sharing the knowledge. Let me get to it. I am trying to write a very small script to take away from the boredom of doing the same thing over and over. Everynow and again I have to get the hex value of a file using a... (2 Replies)
Discussion started by: BkontheShell718
2 Replies

10. Shell Programming and Scripting

Can I avoid the standard output from kill command

I am sending a kill comand to kill a process inside a SH script but I don`t want the user to notice it so I dont want the message "1222 killed" to appear. I`ve tried to redirect the standard output to /dev/null 2>&1 and also tried to use "nohup" but none of them was succesfull. Can anyone... (1 Reply)
Discussion started by: pguinal
1 Replies
Login or Register to Ask a Question

Featured Tech Videos