07-31-2013
Quote:
Originally Posted by
RudiC
<space><enter> behave as you expected: "invalid choice " is displayed for 2 seconds, and then MAIN is executed (BTW, be careful with unterminated recursion here!).
The behaviour of <enter> alone is a feature of the select command, see its man page.
<enter> or <space><enter> are not behaving as expected it does not go to "invalid choice" for 2 secs, then MAIN, it's just displaying the menu list down on the screen over and over, hence this is my issue I'm wanting to correct. That behaviour doesn't not seem right.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a file containing a list of references and I want to run a script that will make the same action for each reference.
The input file changes every hour, it's why I want to use a script that can read in a file, record by record, and run a specific action for the reference readed.
Thanks... (1 Reply)
Discussion started by: dde
1 Replies
2. Shell Programming and Scripting
Hello everyone,
I have a quick question about the select command in ksh. I am using it to define a menu for user selection, I have found that the REPLY var contains the input from the user, I was interested to find out if there is a system variable that contains the whole menu as an array, the... (2 Replies)
Discussion started by: gio001
2 Replies
3. Shell Programming and Scripting
Trying to create a script in BASH that would ask the user to enter another user name making sure the input is not blank before they hit enter then to check the home directory of that user does exist, I have the check folder sorted it's just the loop to make sure the user has entered chars (5 Replies)
Discussion started by: MBN
5 Replies
4. Shell Programming and Scripting
Hey,
examples of the input (text line):
/bla/blMOasdn234.adanif24/blabla.rar
/bla/blMOasdn234.adanif24/blabla23124.bin
/bla/bla/bla/bla/bla/bla.bin
and what I need to do is extract/select only the dir path so the output would be:
/bla/blMOasdn234.adanif24/
/bla/blMOasdn234.adanif24/... (4 Replies)
Discussion started by: TehOne
4 Replies
5. Shell Programming and Scripting
Okay -- I hope I ask this correctly.
I'm working on my little shell script to write vendor names and aliases to files from user input. If a user choose to add to a file, he can do that as well. I'm using a select loop for this function to list all the possible files the user can choose from.... (7 Replies)
Discussion started by: Straitsfan
7 Replies
6. Shell Programming and Scripting
Hi All
I am using the below code to chose a file to view :
PS3="Select file to view : "
select FILE in `ls` QUIT
do
if ; then
clear
cat $FILE
else
break
fi
REPLY=''
done
Everything works fine as long as I am giving the correct choice .
But when i give a... (4 Replies)
Discussion started by: ningy
4 Replies
7. UNIX for Dummies Questions & Answers
Hello everyone,
A simple question which may have a suggested solution:
I am using, and loving, the select command in a ksh93 script on AIX 6.1 to present users with menus.
I have been successful in controlling all of key input by the users, I still have an issue with the RETURN key. When the... (4 Replies)
Discussion started by: gio001
4 Replies
8. Shell Programming and Scripting
Hi Folks,
I have the below feed file named abc1.txt in which you can see there is a title and below is the respective values in the rows and it is completely pipe delimited file ,.
... (3 Replies)
Discussion started by: punpun66
3 Replies
9. Shell Programming and Scripting
A lot of my scripting makes use of the 'select' command to create menu driven input. A typical example of how I use it is as:
somevar=''
PS3='Select one: '
while ]; do
select somevar in $(sqlplus -s $dbuser/$dbpw@mydb <<EOF
set echo off feedback off verify off... (7 Replies)
Discussion started by: edstevens
7 Replies
10. UNIX for Beginners Questions & Answers
Hi
I'm using the "select" command in the global_env.sh to log in to the application directory. This file is called in .bashrc profile.
Sample code:
Filename: global_env.sh
set -o vi
export severname=$(uname -n)
printf '%s\n%30s\n%s\n' "***********************" "Welcome to $severname"... (6 Replies)
Discussion started by: cheers799
6 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS
--debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)