[SOLVED] How to replace a code block with multiple lines in a file using bash script?

bmxakias · 11-21-2019, 10:34 AM

Hello

How can i replace a code block with multiple lines in a file using bash script?

example:

in file test.php replace this:

Code:

        <li>
            <a href="{{ route('playlists.index') }}">
                <i class="{{ config('other.font-awesome') }} fa-list-ol" style=" font-size: 18px; color: #ffffff;"></i>
                <span class="menu-text">Playlists</span>
                <span class="selected"></span>
            </a>
        </li>

with:

Code:

        <li>
            <a href="{{ blabla('dokam.something') }}">
                <i class="{{ power('test.font-awesome') }} fa-list-ol" style=" font-size: 20px; color: #ffffff;"></i>
                <span class="test2-text">Playlists</span>
                <span class="sel"></span>
            </a>
        </li>

Checking on the net i found a few info but not many for multi line and didn't manage to get that working ...

Thank you

MadeInGermany · 11-22-2019, 03:39 AM

replace.sed:

Code:

|<a href="{{ route('playlists.index') }}">\| {
  :L
  N
  |</a>\|!bL
  s|.*||
  i\
            <a href="{{ blabla('dokam.something') }}">\
                <i class="{{ power('test.font-awesome') }} fa-list-ol" style=" font-size: 20px; color: #ffffff;"></i>\
                <span class="test2-text">Playlists</span>\
                <span class="sel"></span>\
            </a>
}

Code:

sed -f replace.sed -i.bak test.php

grail · 11-22-2019, 03:42 AM

Something like the following sed might get you started:

Code:

sed -n '/<li>/,/<\/li>/p' file

Obviously there will be multiple 'li' tags in your code so you will need to find what is unique about this particular one prior to the change

syg00 · 11-22-2019, 04:24 AM

This could turn seriously ugly - maybe straight away, maybe some time down the track. So many potential corner cases ...

Firerat · 11-22-2019, 04:54 AM

this works with the sample

Code:

sed -E '{
  s/route(..)playlists.index/blabla\1dokam.something/
  s/config(..)other(.+ font-size:) 18px/power\1test\2 20px/
  s/menu-text/test2-text/
  s/selected/sel/
}' 


#

obviously that is hardcoded, and largely worthless

if you provide detail a better solution may be available
I doubt that will happen
you appear to have not learned anything from your recent threads

It is getting quite tiresome to be honest.

bmxakias · 11-22-2019, 06:40 AM

Thank you !

astrogeek · 11-22-2019, 11:27 AM

@Firerat - Once you have chosen to participate in a thread, please make your points without expressions of bitterness or being scornful of other members. Avoid the fatigue by simply avoiding threads which cause you to feel that way. If you choose to participate, do so respectfully.

From the LQ Rules:

Quote:

Challenge others' points of view and opinions, but do so respectfully and thoughtfully ... without insult and personal attack.

If you think the behavior of others is unacceptable, use the Report button to bring it to attention of the forum moderators.

Firerat · 11-22-2019, 11:41 AM

Quote:

Originally Posted by astrogeek

@Firerat - Once you have chosen to participate in a thread, please make your points without expressions of bitterness or being scornful of other members. Avoid the fatigue by simply avoiding threads which cause you to feel that way. If you choose to participate, do so respectfully.

From the LQ Rules:

If you think the behavior of others is unacceptable, use the Report button to bring it to attention of the forum moderators.

I have reported your post, as I think your behaviour towards my post was unacceptable.

rtmistler · 11-22-2019, 11:58 AM

Quote:

Originally Posted by Firerat

I have reported your post, as I think your behaviour towards my post was unacceptable.

The quote below is your post where you made comments to the OP that their threads are getting tiresome and that you question whether or not they've learned anything. That is not discussing technical topics respectfully, and instead is conducting a personal attack.

The correct choice there would be to act polite. If you feel an OP does not follow advice and persists with this pattern you may certainly report their continued behavior for evaluation, you may choose to not provide any help for their thread questions, or you may choose to inquire more information from them, and if they fail to follow up adequately, then there's not much you, or anyone could do to provide assistance for them.

Quote:

Originally Posted by Firerat

this works with the sample

Code:

...

obviously that is hardcoded, and largely worthless

if you provide detail a better solution may be available
I doubt that will happen
you appear to have not learned anything from your recent threads

It is getting quite tiresome to be honest.

Firerat · 11-23-2019, 05:00 AM

Quote:

Originally Posted by rtmistler

The quote below is your post where you made comments to the OP that their threads are getting tiresome and that you question whether or not they've learned anything. That is not discussing technical topics respectfully, and instead is conducting a personal attack.

I reported this post

Quote:

Originally Posted by astrogeek

@Firerat - Once you have chosen to participate in a thread, please make your points without expressions of bitterness or being scornful of other members. Avoid the fatigue by simply avoiding threads which cause you to feel that way. If you choose to participate, do so respectfully.

From the LQ Rules:

If you think the behavior of others is unacceptable, use the Report button to bring it to attention of the forum moderators.

You have failed to deal with the Reported Post

@Astrogreek is projecting their own feelings upon my post.
using an extremely loose interpretation of "the rules"
also miss representing the "rule" by not quoting in full

Quote:

Challenge others' points of view and opinions, but do so respectfully and thoughtfully ... without insult and personal attack. Differing opinions is one of the things that make this site great.

I doubt that will happen # my opinion
you appear to have not learned anything from your recent threads # my opinion
It is getting quite tiresome to be honest. # my opinion

Quote:

Originally Posted by rtmistler

The correct choice there would be to act polite.

Please explain in what way it was not polite.

Quote:

Originally Posted by rtmistler

If you feel an OP does not follow advice and persists with this pattern you may certainly report their continued behavior for evaluation,

That would be petty
Although I do note that both yourself and Astrogeek do seem to embrace pettiness whilst failing to moderate with moderation.

I reported @astrogeek's post as I'm getting fed up with their pattern of bulling
You have failed to address that.
And not for the first time you simply join in on the bullying.

Quote:

Originally Posted by rtmistler

you may choose to not provide any help for their thread questions, or you may choose to inquire more information from them, and if they fail to follow up adequately, then there's not much you, or anyone could do to provide assistance for them.

I did, and as predicted they just clicked on the "Did you find this post helpful?" link
and posted "Thank You!"

Go on, check the database
It was long before @Astrogeek resumed their bulling campaign in this thread.

It would appear that the only one "offended" was the one who projected their own bitterness over my expression of frustration.

they should have followed this rule

Quote:

Do not post if you do not have anything constructive to say in the post.

since Both you and Astrogeek have taken this thread off topic
I will get it back on track

sample.txt

Code:

   <li>
        <a href="{{ route('playlists1.index') }}">
            <i class="{{ config('other.font-awesome') }} fa-list-ol" style=" font-size: 18px; color: #ffffff;"></i>
            <span class="menu-text">Playlists1</span>
            <span class="selected"></span>
        </a>
    </li>
    <li>
        <a href="{{ route('playlists2.index') }}">
            <i class="{{ config('other.font-awesome') }} fa-list-ol" style=" font-size: 18px; color: #ffffff;"></i>
            <span class="menu-text">Playlists2</span>
            <span class="selected"></span>
        </a>
    </li>
    <li>
        <a href="{{ route('playlists.index') }}">
            <i class="{{ config('other.font-awesome') }} fa-list-ol" style=" font-size: 18px; color: #ffffff;"></i>
            <span class="menu-text">Playlists2</span>
            <span class="selected"></span>
        </a>
    </li>

This is much more targeted

Code:

#!/bin/bash

# Arrays, [0]="Original" [1]="new"

   Route=( "playlists2.index" "1dokam.index" )
  Config=( "other.font-awesome" "power.font-awesome" )
FontSize=( "18" "20" )
MenuText=( "Playlists2" "1dokam" )

# real script would use -i.BackupSuffix  
sed -E '/^[[:blank:]]+<a href=.+route.+'${Route[0]}'/,/^[[:blank:]]+<[/]a>/ {
  s/^([[:blank:]]+<a href.+route.+)'${Route[0]}'/\1'${Route[1]}'/
  s/^([[:blank:]]+<i class.+config.+)'${Config[0]}'/\1'${Config[1]}'/
  s/^([[:blank:]]+<i class.+config.+ font-size: )'${FontSize[0]}'(px)/\1'${FontSize[1]}'\2/
  s/^([[:blank:]]+<span.+menu-text.+)'${MenuText[0]}'/\1'${MenuText[1]}'/
}' ./sample.txt


#

I have used Arrays for the original/new
but
orignialRoute=
newRoute=
could be used

FontSize[0]="[0-9]{2}"
FontSize[1]="20"

means any font-size is replaced by 20