03-06-2009
Exactly what I needed! Thank you very much. Now we'll see if I can actually make my plan work...
Quote:
Originally Posted by
Corona688
In BASH you can specify how many characters to read like 'read -n 1 C'. Read will return after 1 character input and place its value in C. Also, -s will also cause the input to not be echoed to the screen.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I'd like to write a shell script that will enter '1', for example. How
do you do that?
You know, so instead of writing
echo "Enter 1 or 2"
read onetwo
and waiting for the user to enter a 1 or 2,
I'd like the script to act like someone entered a 1, or 2. Is there a
hex value for the... (1 Reply)
Discussion started by: jpprial
1 Replies
2. UNIX for Dummies Questions & Answers
Hi,
Whenever i press the backspace key, a new line appears, i.e. it works like a enter key. :confused:
Thanks (2 Replies)
Discussion started by: vibhor_agarwali
2 Replies
3. Shell Programming and Scripting
Hi,
I'm porting an install script from AIX to Red Hat (2.6.18-164.el5 #1 SMP)
I have this script working in both AIX and HP-UX.
The script is a wrapper for a Micro Focus Server Express install program. It responds to the install program questions with a here-now list. Responses includes... (14 Replies)
Discussion started by: duker61
14 Replies
4. Shell Programming and Scripting
hi experts
Question in perl
i'm creating a script to take from user a different inputs one of them is the carriage return .. so that i want to make an if condition if the user hit enter key the user will go to previous step
it something like that
chomp ($input = <STDIN>);
if ($input =~... (3 Replies)
Discussion started by: doubando
3 Replies
5. Shell Programming and Scripting
Hi I'm trying to create a basic script that pauses for user input to verify a file name before generating the output.
I have numerous SSL certificate files which I am trying to determine the expiry date so what I'm trying to do is write a script so that is pauses to request the name of the .pem... (9 Replies)
Discussion started by: Buddyluv
9 Replies
6. Shell Programming and Scripting
have three big data file, however I just need to see the mentioned below one line form the all the file which has SERVER_CONNECTION Value
File 1
export SERVER_CONNECTION=//dvlna002:10001/SmartServer
File2
export SERVER_CONNECTION=///SmartServer
File3
export... (1 Reply)
Discussion started by: Nsharma3006
1 Replies
7. Shell Programming and Scripting
hi,
i've bash script thats working...
but now i need to add a line....that prompts for user input....like yes and 1 as complete install....
so here's how it looks...
$ cd 9200 (cd into directory)
$./install (hv to type ./install to run install then ask for)
----do you want to... (4 Replies)
Discussion started by: kernel11
4 Replies
8. Shell Programming and Scripting
Hi all,
I have a little problem with my shell script (reading user input, save user input to variable, invisible characters in the log file :()
printf "1. What's your file path?"
/path/to/my/file
read -e FILE
I have invisible characters in my log file (e.g. <ESC> or ^G) when I'm... (3 Replies)
Discussion started by: splendid
3 Replies
9. Shell Programming and Scripting
I am looking for a way to start a script and have it prompt for a password that will be used later on in the script to SSH to another host and to SFTP. I don't want the password to be hard coded. Below is my script with the actual IP's and usernames removed.
#!/usr/bin/expect -f... (2 Replies)
Discussion started by: jbrass
2 Replies
10. Shell Programming and Scripting
Hey All,
I am writing one script using expect, that script which is used in spawn will accepts only 1. Enter 2. Ctrl+c
Press Control-C to exit, Enter to proceed.
Could some one share some thoughts to send the above user inputs in linux expect block ?
Thanks,
Sam (0 Replies)
Discussion started by: SCHITIMA
0 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)