Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

shell script, reading and resetting local variables

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers shell script, reading and resetting local variables
# 1  
Old 08-20-2001
Question shell script, reading and resetting local variables
Hello,

I have a problem with trying to run a shell script that reads in user input, validates, and sets to a 'default' value if the input is not valid. I cannot get the portion of resetting to a default value to work. These lines are skipped, and the
value of x is still whatever the user entered initially. Is it possible that the first x variable is not the same as the x in 'setx=10' line?

simpled version of the script

#!/bin/sh
#
echo "Enter x"
read x
echo "You entered $x"
#
# lines to validate here...
# ....
#
# I cannot get the following lines to work
set x=10
echo "x reset to $x" Smilie
# 2  
Old 08-20-2001
Instead of "set x=10", use "x=10" or "set x 10", you will have the right output.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

How to have local shell variables in a ksh script seen on remove server in SSH block?

I have googled this and found many solutions, but none of them are working for me. I am in a korn shell, most others reference bsh, maybe that is the issue? Anyway, all I am trying to do is use a variable I have declared in my main script in a remote shell I am running through ssh. So I have a... (8 Replies)
Discussion started by: DJR
8 Replies

2. Shell Programming and Scripting

Except script to run a local shell script on remote server using root access

local script: cat > first.sh cd /tmp echo $PWD echo `whoami` cd /tmp/123 tar -cvf 789.tar 456 sleep 10 except script: cat > first #!/usr/bin/expect set ip 10.5.15.20 set user "xyz123" set password "123456" set script first.sh spawn sh -c "ssh $user@$ip bash < $script" (1 Reply)
Discussion started by: Aditya Avanth
1 Replies

3. Shell Programming and Scripting

How to write config shell script to pass variables in master shell script?

Dear Unix gurus, We have a config shell script file which has 30 variables which needs to be passed to master unix shell script that invokes oracle database sessions. So those 30 variables need to go through the database sessions (They are inputs) via a shell script. one of the variable name... (1 Reply)
Discussion started by: dba1981
1 Replies

4. UNIX for Dummies Questions & Answers

How to write Config shell script to pass variables in master shell script?

Dear Unix gurus, We have a config shell script file which has 30 variables which needs to be passed to master unix shell script that invokes oracle database sessions. So those 30 variables need to go through the database sessions (They are inputs) via a shell script. one of the variable name... (1 Reply)
Discussion started by: dba1981
1 Replies

5. Shell Programming and Scripting

To run a local shell script in a remote machine by passing arguments to the local shell script

I need to run a local shell script on a remote machine. I am able to achieve that by executing the command > ssh -qtt user@host < test.sh However, when I try to pass arguments to test.sh it fails. Any pointers would be appreciated. (7 Replies)
Discussion started by: Sree10
7 Replies

6. Shell Programming and Scripting

Reading comma separated variable into other variables in shell script

Hi, In shell script, I have a variable var = xyz, inn, day, night, calif ....n and I would like to read them in to var1 = xzy, var2 = inn, var3= day, var4 = night....var. probably in a loop. I would like to read the variables until end of the line. Comma is the delimiter and there's no comma at... (3 Replies)
Discussion started by: suryaemlinux
3 Replies

7. Shell Programming and Scripting

Perl script 'system' linking to local shell script not working

Trying to figure out why this works: printpwd.pl #!/usr/bin/perl use CGI::Carp qw( fatalsToBrowser ); print "Content-type: text/html\n\n"; $A = system("pwd"); $A = `pwd`; print "$A\n"; ^^actually that works/breaks if that makes any sense.. i get the working directory twice but when... (5 Replies)
Discussion started by: phpfreak
5 Replies

8. Shell Programming and Scripting

Help with shell script to run the commands reading options from local file

I have to use shell script to run series of commands on another unix box by connecting through SSH and giving user credentials. For running commands on remote machine I have to use options reading from a local file. Process: Connecting to remote unix server <host1.ibm.com> through ssh Login: ... (2 Replies)
Discussion started by: itsprout
2 Replies

9. Shell Programming and Scripting

How to make variables in script function local?

Is it possible to make function variables local? I mean for example, I have a script variable 'name' and in function I have declared variable 'name' I need to have script's 'name' have the same value as it was before calling the function with the same declaration. The way to preserve a... (5 Replies)
Discussion started by: alex_5161
5 Replies

10. Shell Programming and Scripting

Reading Multiple Variables From a Single Line in Shell

I'm a Linux newb, I've been running a Debian Linux server for about a year now, and I've written some simple scripts to automate various things, but I still don't know much, and I forget what I learn as fast as I figure it out... Anyway, that really isn't important, I just want you to know that... (14 Replies)
Discussion started by: Drek
14 Replies
Login or Register to Ask a Question