Shell Programming and Scripting

Hi All,


How can I trap a character press in the shell script.
For eg:- I have a script runinng a infinite loops , I will need to dispay menu asking for run process of to stop process and process stauts like we do in glance


I have seen the traping the signal in glance command,

The way I tend to do it is:

Code:

GetKeystroke () {
oldSttySettings=`stty -g`
stty -echo raw
echo "`dd count=1 2> /dev/null`"
stty $oldSttySettings
}

Then you can do something like:

action="X"
while [ `echo "DHPQS"  | grep -v $action` ]
do
  action=`GetKeystroke | cut -c1 | tr "[a-z]" "[A-Z]"`
done

echo $action

HTH - and any improvements on my code appreciated :-)

hi,

please see below code. what i exactly need is if i press key
m then menu
h then help



while true ; do
m_date=`date +'%d/%m/%Y %H:%M:%S'`
process1=$(ps -ef | grep process1 |grep -v grep|wc -l)
process2=$(ps -ef | grep process2 |grep -v grep|wc -l)
count_process1_files=`ls /process1/|grep .txt |grep -v PROCESSED|wc -l 2> tt`
count_process2_files=`ls /process2/|grep .txt |wc -l 2> tt`
if [ $process1 -eq 0 ]
then
process1_status='Not Running'
else
process1_status='Running'
fi

if [ $process2 -eq 0 ]
then
process2_status='Not Running'
else
process2_status='Running'
fi

echo "\n\n\n"
echo ' ------------------------------------------------------------------------'
echo ' | Process : Running status : Intance : Files Pending |'
echo ' ------------------------------------------------------------------------'
echo ' | process1 : ' $process1_status' : ' $process1' : '$count_process1_files' |'
echo ' ------------------------------------------------------------------------'
echo ' | process2 : ' $process2_status' : ' $process2' : '$count_process2_files' |'
echo ' ------------------------------------------------------------------------'



sleep 8
clear
done


i want to do is if i press M/m key then script should display the menu
i.e
a. do u want to start process
b. do u want to stop process
if i select a then it should ask for
process 1 or process2 etc

please refer below code.
my script is running in while loop.
while true ; do
m_date=`date +'%d/%m/%Y %H:%M:%S'`
process1=$(ps -ef | grep process1 |grep -v grep|wc -l)
process2=$(ps -ef | grep process2 |grep -v grep|wc -l)
count_process1_files=`ls /process1/|grep .txt |grep -v PROCESSED|wc -l 2> tt`
count_process2_files=`ls /process2/|grep .txt |wc -l 2> tt`
if [ $process1 -eq 0 ]
then
process1_status='Not Running'
else
process1_status='Running'
fi
if [ $process2 -eq 0 ]
then
process2_status='Not Running'
else
process2_status='Running'
fi
echo "\n\n\n"
echo ' ------------------------------------------------------------------------'
echo ' | Process : Running status : Intance : Files Pending |'
echo ' ------------------------------------------------------------------------'
echo ' | process1 : ' $process1_status' : ' $process1' : '$count_process1_files' |'
echo ' ------------------------------------------------------------------------'
echo ' | process2 : ' $process2_status' : ' $process2' : '$count_process2_files' |'
echo ' ------------------------------------------------------------------------'

sleep 8
clear
done

i want to do is if i press M/m key then script should display the menu
i.e
a. do u want to start process
b. do u want to stop process
if i select a then it should ask for
process 1 or process2 etc

hi all.

please help.

please do not multiple post

This is a duplicate of the thread:

https://www.unix.com/unix-advanced-ex...ll-script.html

Also - pleaes do not "bump" your threads.

Both these activities are frowned upon......

hi,


i am unable to use u r code . please use u r code in my sample script and revert with code.

thanx in advance!