Shell Programming and Scripting

You are right, and above code will also work for any pattern like A123 and Z213.

Mind blowing @kumaran_555...it happened.Can you please explain how script in short.
Its creating separate pattern.txt files. Now One more requirement is i need to divide any of the .txt created files into 4 files dividing the contents of the main file.

For Example as soon as the A123.txt file is created, since the size for this txt file is too large i want to divide this file into 4 files with any name..

Code:

man split

After the awk command, execute the below script. Try to avoid the main file name in the list

Code:

for f in `ls|grep -v main_file|xargs`
do
line=`wc -l $f`|cut -d' ' -f1`
line_per_file=`echo $line/4|bc`
split -l $line_per_file $f $f
done

@Kumaran_555 your below code for searching pattern and making one file per pattern is absolutely working fine..
your code

Code:

awk  '{print $0 >>substr($0,0,4)".txt"}'  test.txt

now what is this doing is, if i have 20 different pattern like A123,Z213,O23,P098 and so on.it create files for all the pattern.

now if i want only 2 pattern out of these say A123 and O23, how can this be possible...

Can anybody suggest ???

---------- Post updated at 02:57 PM ---------- Previous update was at 11:55 AM ----------

@Kumaran_555 your below code for searching pattern and making one file per pattern is absolutely working fine..
your code

Code:

awk '{print $0 >>substr($0,0,4)".txt"}' test.txt

now what is this doing is, if i have 20 different pattern like A123,Z213,O23,P098 and so on.it create files for all the pattern.

now if i want only 2 pattern out of these say A123 and O23, how can this be possible...


---------- Post updated 07-19-11 at 11:25 AM ---------- Previous update was 07-18-11 at 02:57 PM ----------

Can anybody look into this ???

Please try to state your problem/requirement in a single post. Adding new requirement to each post may not comply with the subject line.

Code:

awk '/A123|O23/{print $0 >substr($0,0,4)".txt"}' test.txt