Getting user input from inside a while loop? Post: 302357144

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

input inside while read loop

Hi all Does anyone have a script that will allow me to stop inside a while read loop. I want to pause the loop until a enter is pressed. e.g. While read line do echo something if LINECOUNT > 40 then read ENTER?"PRESS ENTER TO CONT..." ...

2. UNIX for Dummies Questions & Answers

read user input from within a wile loop that is being fed from below

hi! i need to do a ksh script that uses a wile loop that is fed form below while read line do some things done < myfile inside the while loop i need to read user input to ask the user what he wants to do, but "read" reads the file, and not the standard input while read line do ...

3. Shell Programming and Scripting

Loop until user input is correct

Hello, i know how to retrieve a user input (read), and how to manage the different options (case statement). But... could anybody show me a script that, if the user option is incorrect, don't allow to continue the excution, i.e., if the value entered is not 1 or 2, the script shows a question. ...

4. Shell Programming and Scripting

read command (input) inside the while loop

Hi, 'read' command is not working inside the while loop, How can I solve this? Rgds, Sharif.

5. Shell Programming and Scripting

matching user input to a text file loop?

until do read -p "Invalid cars. Try againa" cars1 done Ok i have the above code, im getting users input and if it doesnt match in the file the user has to try again untill its correct But when i run this it gives me an error saying ./Cars.bash: line 43:

6. Shell Programming and Scripting

no chance to input passwd when create new user in loop

Hi Dears, I have one script to create new users with information in one plain text file. This script will read all lines in the file and create one users for one line. Sample file: #action;login,full name title,expire date,project +;gmwen,Bruce Wen QA,04/01/2012,BT +;xxdeng,Shown Deng...

7. Homework & Coursework Questions

How to read user keyboard input inside the case?

I need to Write a shell script that allows some system-administration tasks to be preformed automatically from a menu-driven interface. with automated following tasks: Copy directory tree Delete files or directories Output Information (this part is done ) *Copy directory tree The �Copy...

8. Shell Programming and Scripting

Loop breaks on yes/no user input

I have a shell script, and its pretty much done, I decided to add a loop that ends or continues depending on user input. like "would you like to continue?" and if I hit y or yes it will run the loop again until I hit n or no and breaks out of the loop. To be hones I didn't think I needed to add...

9. Shell Programming and Scripting

Unable to read user input inside a loop

Hi, This query is a part of a much more lengthy script. I wish to look for all the files in a folder named "data" which in this case has two files i.e. plan.war and agent.properties. For all the files found under data I wish to ask the user as to where they wish copy the files to. Below,...

10. Shell Programming and Scripting

Would like to check user input for letters within a loop

Hi All, #!/bin/bash #Just trying to check if letters are in the user input. Any tips? # I have tried regexp and using 0-9 etc, i cannot get this to work either in just an if statement or while in a loop. echo "Please pick a number" read num if ; then echo "Please enter a number"...

LEARN ABOUT CENTOS

ttysnoop

TTYSNOOP(8)                                                 BSD System Manager's Manual                                                TTYSNOOP(8)

NAME

     ttysnoop -- snoop on a user's tty

SYNOPSIS

     ttysnoop [pty]
     ttysnoops

DESCRIPTION

     The ttysnoop / ttysnoops client-server combo can be used to snoop (watch) on a user's login tty.  The server (ttysnoops) is usually started
     by getty(8) or telnetd(8) and reads the file /etc/snooptab to find out which tty's should be cloned and which programs to run on them (usu-
     ally /bin/login). A tty may be snooped through a pre-determined (ie.  fixed) device, or through a dynamically allocated pseudo-tty (pty).
     This is also specified in the /etc/snooptab file. To connect to the pty, the client ttysnoop should be used. The available pseudo terminals
     pty are present as sockets in the directory /var/spool/ttysnoop/.

   Format of /etc/snooptab
     The /etc/snooptab file may contain comment lines (starting with a '#'), empty lines, or entries for tty's that should be snooped upon. The
     format of such an entry is as follows:

           tty   snoop-device   type   program

     where tty is the leaf-name of the tty that should be snooped upon (eg. ttyS2, not /dev/ttyS2) OR the wildcard '*', which matches ANY tty.
     snoop-device is the device through which tty should be snooped (eg. /dev/tty8) OR the literal constant "socket". The latter is used to tell
     ttysnoops that the snoop-device will be a dynamically allocated pty.  type specifies the type of program that should be run, currently recog-
     nized types are "init", "user" and "login" although the former two aren't really needed. Finally, program is the full pathname to the program
     to run when ttysnoops has cloned tty onto snoop-device.

EXAMPLE

     The following example /etc/snooptab file should illustrate the typical use of ttysnoop / ttysnoops:

            #
            # example /etc/snooptab
            #
            ttyS0    /dev/tty7    login    /bin/login
            ttyS1    /dev/tty8    login    /bin/login
            #
            # the wildcard tty should always be the last one in the file
            #
            *        socket       login    /bin/login
            #
            # example end
            #

     With the above example, whenever a user logs in on /dev/ttyS0 or /dev/ttyS1, either tty will be snooped through /dev/tty7 or /dev/tty8
     respectively. Any other tty's will be snooped through a pty that will be allocated at the time of login. The system-administrator can then
     run ttysnoop pty to snoop through the pty. Note that it is up to the system-administrator to setup getty and/or telnetd so that they execute
     ttysnoops instead of /bin/login.

SEE ALSO

     getty(8), telnetd(8)

FILES

     /etc/snooptab

BUGS

     The program is unable to do any terminal control-code translations for the original tty and the snoop-device. I doubt it will ever do this.

AUTHOR

     Carl Declerck, carl@miskatonic.inbe.net

BSD                                                                August 8 1994                                                               BSD

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

input inside while read loop

Discussion started by: jhansrod

2. UNIX for Dummies Questions & Answers

read user input from within a wile loop that is being fed from below

Discussion started by: broli

3. Shell Programming and Scripting

Loop until user input is correct

Discussion started by: aristegui

4. Shell Programming and Scripting

read command (input) inside the while loop

Discussion started by: sharif