I am trying to create a shell (ksh) which has two "read" commands, one which reads a line from a file and another which is inside a loop that reads user input from a keyboard. However, the "read" command inside the loop uses the input from the file and it does not get the user input from keyboard.... (3 Replies)
how do we read input from a user
e.g i want to ask a user to enter 6 sets of numbers
how do i control information from the user?
i have this.......
#!/bin/bash
echo "Please enter six numbers"
read number
echo $number >> file1
but this stops after the first number..how can i... (2 Replies)
Here is my script:
echo "var 1:"
read varone
echo "$varone"
When I run in via ksh the script runs successfully.
However when I run it via tcsh I get "varone: Undefine variable"
Does the name command not work with tcsh or do I need some additional modification? Is there a way to get... (1 Reply)
Hi everyone,
I cant seem to figure this out for the life of me. Basically, I have two arrays..
sub init {
use Getopt::Long;
use Data::Dumper;
my @selections = ();
my @valid_options = ( "vaild1", "valid2" );
GetOptions( "input=s" =>... (2 Replies)
Please tell me how to write a perl script that asks the user to enter words and that passes them to a variable.
In bash, the "read" command would achieve such user interaction.
#!/bin/bash
read -p "Enter files: " vFiles
However, I am looking for perl version of something equivalent... (2 Replies)
i have a script which takes input from user, if user gives either Y/y then it should continue, else it should quit by displaying user cancelled.
#!/bin/sh
echo " Enter your choice to continue y/Y OR n/N to quit "
read A
if
then
echo " user requested to continue "
##some commands... (7 Replies)
How to check the user input to be valid using shell script?
The valid input is in the format like as follows.
1. It can only have r,w,x or a hyphen and nothing else.
2. ensure the r, w, x are in the correct order.
for example: rwxr-xr-x is a valid format.
Thanks (5 Replies)
The (longer) script that I am working on does something like this:
#!/bin/bash
while true
do
clear
sleep 1
shuf -i1-2 -n1
sleep .1
clear
echo "Press 1 if you saw a 1. Press 2 if you saw a 2."
read -s -n1 RESPONSE
done
If the user accidentally presses two... (1 Reply)
I am trying to allow a user to enter in text and then store that text in a variable $gene to run in an awk command in which those values are used to run some calculations. I am getting syntax errors however, when I try. Thank you :).
The awk runs great if it is a pre-defined file that is used,... (7 Replies)
I'm trying to use a bash script for a psych experiment that involves listening to sound files and responding. If I have something like the code below, how can I make sure that a key press is assigned to RESPONSE only after the second echo statement?
for i in 1 2 3; do
echo "Ready?"
sleep 2
... (10 Replies)
Discussion started by: darwin_886
10 Replies
LEARN ABOUT SUSE
chsh
chsh(1) General Commands Manual chsh(1)NAME
chsh - change login shell
SYNOPSIS
chsh [-D binddn] [-P path] [-s shell] [-l] [-q] [-u] [-v] [user]
DESCRIPTION
chsh is used to change the user login shell. A normal user may only change the login shell for their own account, the super user may
change the login shell for any account.
If a shell is not given on the command line, chsh operates in an interactive fashion, prompting the user with the current login shell.
Enter the new value to change the field, or leave the line blank to use the current value. Enter none to remove the current value. The
current value is displayed between a pair of [ ] marks.
The only restrictions placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the super-
user, and then any value may be added. An account with a restricted login shell may not change their login shell.
This version of chsh is able to change the shell of local, NIS, NIS+ and LDAP accounts , if the permissions allow it.
OPTIONS -D, --binddn binddn
Use the Distinguished Name binddn to bind to the LDAP directory. The user will be prompted for a password for simple authentica-
tion.
-P, --path path
The passwd file is located below the specified directory path. chsh will use this files, not /etc/passwd. This is useful for exam-
ple on NIS master servers, where you do not want to give all users in the NIS database automatic access to your NIS server and the
NIS map is build from special files.
-s, --shell
Specify your login shell.
-l, --list-shells
Print the list of shells listed in /etc/shells and exit.
-q, --quite
Don't be verbose.
-u, --usage
Print a usage message and exit.
--help
Print a more verbose help text and exit.
-v, --version
Print version information and exit.
FILES
/etc/passwd - user account information
/etc/shells - list of valid login shells
SEE ALSO chfn(1), passwd(5), shells(5)AUTHOR
Thorsten Kukuk <kukuk@suse.de>
pwdutils February 2004 chsh(1)