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SED Newb - Range Rage!

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Top Forums Shell Programming and Scripting SED Newb - Range Rage!
# 1  
Old 06-08-2009
SED Newb - Range Rage!
Hi all

First time poster long time lurker. I've been trying to get my head around SED but I think my beginner status is starting to prove too great a hindrence. I have nearly 100 CSS files that I need to modify in such a way that

Code:
label, b, p .text{
some style stuff
}

would become

Code:
b ,p .text{
some style stuff
}

label {custom style stuff}

label can appear above in the following ways

Code:
label ,...

Code:
label, ....

Code:
, label...

Code:
,label...

What I was trying to do was operate the the different flavours of 'label', and then find the next closing tag '}'. I'm testing the finding of 'label' with

Code:
sed 's/,label//g;s/, label//g;;s/label,//g;s/label ,//' test.css

Code:
test.css

body{

    color: #000000;
    font-family: Verdana, Arial, Helvetica, Sans-Serif;
    font-size: 10px;
    margin: 0px;
    padding: 0px;
        background:white;
        /*background-image: url(https://www.unix.com/images/background.gif);*/
}

label ,b, p, .text  
{
    color: #000000;
    font-family: Verdana, Arial, Helvetica, Sans-Serif;
    font-size: 10px;
}

label,b, p, .text  
{
    color: #000000;
    font-family: Verdana, Arial, Helvetica, Sans-Serif;
    font-size: 10px;
}

b, p, label .text  
{
    color: #000000;
    font-family: Verdana, Arial, Helvetica, Sans-Serif;
    font-size: 10px;
}

b, p,label .text  
{
    color: #000000;
    font-family: Verdana, Arial, Helvetica, Sans-Serif;
    font-size: 10px;
}

If anyone could give me some direction I'd really appreciate it.
# 2  
Old 06-08-2009
something like this ? :

Code:
sed 's|\(.*\)\(label\)\(.*\)|\1\3|g' inputfile.txt

# 3  
Old 06-08-2009
kindly write the output you seek for....
# 4  
Old 06-08-2009
panyam that kind of works on the first step, which is neatly removing label. It does however still leave the comma's. Your code outputs (for example)

Code:
,b, p, .text
{
        color: #000000;
        font-family: Verdana, Arial, Helvetica, Sans-Serif;
        font-size: 10px;
}

against the original

Code:
label ,b, p, .text
{
        color: #000000;
        font-family: Verdana, Arial, Helvetica, Sans-Serif;
        font-size: 10px;
}

Note how in your output the trailing comma after label (,) still remains - which would of course give incorrect CSS code.

The 2nd part of this PAIN is that after above has ran it would need to be able to find the next closing tag ( } ) and append

Code:
label {custom style stuff}

Last edited by GoneShootin; 06-08-2009 at 11:33 AM..
# 5  
Old 06-08-2009
use the below code it will work every time.

sed 's/\,*[ ]*label[ ]*\,*//g'
# 6  
Old 06-08-2009
Quote:
Originally Posted by ahmad.diab
use the below code it will work every time.

sed 's/\,*[ ]*label[ ]*\,*//g'
Yes it does! Thank you ahmad. Now for the second part of my problem:

Based on the above SED command how can I find the next curly bracket "}" and append some text on the following line ?
# 7  
Old 06-08-2009
easy..

just write this literally :-

sed '
/\}/ a\
"write what ever you want"
something...

' inputfile

note:- don't put any space after a\ .. just press ENTER key.

BR


Last edited by ahmad.diab; 06-08-2009 at 11:47 AM..
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