Problem in making a script

amritpalpathak · 06-29-2011, 05:16 AM

hello everyone
Well i dont whether i am going to ask a right question or not.I am making a script for my project.In between there is need for settings of configuration files as per each user's needs.
For example:
users will edit the file to mention he/her own mobile number ,own moblie model ,own database etc etc.
How can i do it in the script?
I mean each user will do it itself or there is any way to do it automatically ?

Thanks in advance

amritpalpathakgne.wordpress.com

colucix · 06-29-2011, 05:47 AM

Which language are you using? In bash/ksh you can use the read statement to query user input. E.g.

Code:

read -p "Please enter model of your mobile" model

in this case the text entered by the user will be stored in the variable "model". Then you have to check the input and make the script to act accordingly. Usually this is done by means of the case/esac construct.

amritpalpathak · 06-29-2011, 06:14 AM

Thank you very much colucix sir.
Now i can easily accept the input from users but i have to edit the config file i.e I want that input given by the users will be replace by config file's entries at particuler line.
please tell me how to replace user's input with config file's particuler line's stuff?

i am using gedit text editor.

Again thanks

amritpalpathakgne.wordpress.com

Wim Sturkenboom · 06-29-2011, 06:50 AM

Code:

echo $model > config.txt
echo $number >> config.txt

This will write the model and number to a file config.txt (change to your needs). The first line will overwrite an existing config.txt, the second line will append.

model and number are read according to post #2

amritpalpathak · 06-29-2011, 07:14 AM

Thank you sir
It is like it will overwrite 1 and then 2 then of config.tex file.But i have to replace it with particuler line number'contents (suppose line number 9).
Than what to do? how to mention that line number ?

Thanks again.

grail · 06-29-2011, 08:01 AM

Have a look at sed to take the values you have been given and replace alternate values in a file.

MTK358 · 06-29-2011, 08:55 AM

If you have a file format like this:

Code:

key: value
foo: bar

Then you can use sed to edit it, like this:

Code:

var="$(echo "$var" | sed -e 's@\\@\\\\@g' -e 's@/@\\/@g')" # escape special chars
sed -i 's/^key:.*/key: '"$var"'/' path/to/configfile