Coding Forum

**gdhanasekar** · 06-06-2005, 04:12 AM

Hello all,

I want to know the some programs details regarding following ....

1. how to edit the many files concurrently
(Example: Suppose I have 500 html files, I want to insert the one line like keywords, tag line ( this should be same ) etc... in the all html files.)
is there any software or anyone willing to writing code for this one (using java, c lang's)

2. how to save a same file content into a multiple files with other names

(Example: Suppose I have a htlml file(same content for all webpages) , in that file i want to modify only the links, and i want to save as a newfile with naming like1.html 2.html 3.html etc in a sequential manner)

is there any software or anyone willing to writing code for this one (using java, c lang's)

Note: html file int the sence only txt files(src code for html page)

thanks

**ibbo** · 10:26 AM

Well first of all your scenario sounds dreadfull (Today I am glad I aint you)

Secondly you are in luck

Thirdly you might be out of luck.

What OS are you running? Do you have access to PERL?

If you dont have PERL or your not using nix then i cannot help otherwise read away.

Under nix we have a utility named Grep, Grep is a pattern matching binary that will probe files for a pattern. However we can also use it smartly to find say a blank line then add our new line to it.

So something like

perl -p -i -e 's/pattern/<replace>/g' `grep -rI pattern * | awk -F : '{print $1 }' | sort | uniq | xargs`

Would for each file in <location> be parsed and any patterns matching would be replaced.

So hang on you say what when how where ?????????????

To add your extra line search for a distinct tag like

perl -p -i -e 's/<head>/<head>\n<link rel="..">/g' `grep -rI head * | awk -F : '{print $1 }' | sort | uniq | xargs`

Which now polls all files in <location> finds the <head> tag and replaces it with <head> + <link rel=""> or whatever you wanna insert. And yes this will do it for all files and directories within your initial directory.

And low and behold your up and running in no time at all.

Of course if you are running windows then (tough, get a real OS) I cannot help for gawd only knows how you would do this under windows.

How to save same file content to multiple files.

Do these files exist?

NO

for i in `seq 20`
do
echo pattern > $i.txt
done

do they already exists?

If not valid remove and apply above.
else
for file in * do
echo pattern > $file
done

Of course nix excells at this kind of thing whereas I have no idea how Windows would start to resolve this problem.

And no if your using windows I will not take you files and do it for you.

Good luck
Ibbo

PS
I can explain whats happening if anyone should really like to know but you can take my word for it, this WORKS.