dialog --title "Inputbox - To take input from you" --backtitle "Linux Shell\
Script Tutorial" --inputbox "Enter your name please" 8 60 2>/tmp/input.$$
sel=$?
na=`cat /tmp/input.$$`
case $sel in
0) echo "Hello $na" ;;
1) echo "Cancel is Press" ;;
255) echo "[ESCAPE] key pressed" ;;
esac
rm -f /tmp/input.$$
What does it mean by $$?
Pid of the current/parrent shell.
Would you please explain some lines?
dialog --title "Inputbox - To take input from you" --backtitle "Linux Shell\
Script Tutorial" --inputbox "Enter your name please" 8 60 2>/tmp/input.$$
na=`cat /tmp/input.$$`
rm -f /tmp/input.$$
What would I please? I don't understand you.
Sorry.Edited.
It was "Explain".
I don't know a tool called "dialog". It seems it handles some kind of input and output, like the text that offers some description and asks for a name which could have a space of 8 characters and maybe a length of 80. I am guessing around - check if you have a man page for that on your system.
What I recognize is the redirection of STDERR with 2> which is written to some temp file that has the parent shell's PID in it's filename.
Variable "na" is defined with the content of the temp file. After that the temp file is removed.
No offense but you should generally have a look into this:
Linux Shell Scripting Tutorial - A Beginner's handbook
Thank you for your reply.
I also have taken that code from that site you gave.
LSST v1.05r3 > Chapter 4 > Input Box (inputbox) using dialog utility
Good morning i have a file, that file have record of 166 caracter
the first position can be (I o E)
2) service code(i have a service code list)(numeric 2)
3)code of city (i have a code o city list) (numeric 2)
4)fact(10) alphanumeric
5)date(8) numeric
6)moneda(1) numeric
7)phone number (10) numeric
and more filds.
i have to validate each of one fileds
The code of service that belongs to the list of services.
Those of code of city that belongs to the list of cities.
The invoice have 10 numbers is not alphanumeric and if there is a blank is bad(wrong).
Equal with the date, the currency.
The phonenumber is alphanumeric as soon as it(he,she) has all that validated stamp the good ones at a file and the wrong at other one could you help me thank you very much for your attention