hi
i´m making a program, and i would like to know how can i know what key was pressed. i'm using Sun5.7 and C.
is there a keypress/keypressed function in C?
how can i know recognize the keys (enter, tab, shift, etc.)?
can i recognize two keys ? (shift+A, ctrl+C, etc)
any idea.. thanks (4 Replies)
I want my program(ksh) to execute further only if the return key is pressed.
Please help.
i have already tried "\n", "\r", "^M" .
Thanks in advance (2 Replies)
hi folks,
i am using sun solaris, when i press escape key in putty/netterm screen will blink for a second, plese let me know where this setting is done by my admin, what i feel is my admin must have set some control key for this so that screen will refresh each time i press escape key. please let... (1 Reply)
Hello friends,
I want to write a shell script in bash shell .
Working for the script is to detect any key pressed and disply on screen as
"you have pressed: "
For example if user pressed F5 then a messaged has to be displayed as
"you have pressed F5.
Thank you. (4 Replies)
hi Gurus, please why is this happening:
when i run this:
#!/bin/bash
declare -a name
declare -a ph
declare -a eid
r=0;
c=1;
i=1;
n=;
echo " name phone email_id"
while :
do
#if ; then
#break;
#else
echo -n "field $i:"; read name ph eid;
let "i++";
... (5 Replies)
Hello everyone.
I'm trying to create a script that waits a given amount of time unless a given key is pressed. I found a very useful thread here
https://www.unix.com/shell-programming-scripting/59605-trap-key-press-script.html
however, I cannot figure out a way of avoiding the keypress if the... (2 Replies)
Hi Experts,
I have a script in which I want to disable the "Enter" key press. Actually my script executes some process in background. So, till that background process is running, I don't want "Enter" key to be pressed by user. Is this can be achieved using trap command? (6 Replies)
So I mounted a 12.04 LTS ISO, exported it via apache. Goy my netinstall files in place. Pointed Foreman to my install media the Preseed config files run. Life is good.
Server comes up, I run apt-get update and blam:
: Failed to fetch... (0 Replies)
Discussion started by: general_lee
0 Replies
LEARN ABOUT DEBIAN
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)