Shell Programming and Scripting

Hi,
Please help in parsing the following file and write separate files by parsing the file for the new file's content.


Main File:
------------

BEGIN
FileName: FirstFile.txt
Content of the File Start
AAAAAAAA
BBBBBBB
Content of the File End
END
BEGIN
FileName: SecondFile.txt
Content of the File Start
CCCCCC
DDDDDD
Content of the File End
END
BEGIN
FileName: ThirdFile.txt
Content of the File Start
EEEEEEE
FFFFFFFF
Content of the File End
END
BEGIN
FileName: FourthFile.txt
Content of the File Start
YYYYYYYY
ZZZZZZZZ
Content of the File End
END

OUTPUT:
Four files with the file names FirstFile.txt,SecondFile.txt,ThirdFile.txt and FourthFile.txt
and content of the files will be between BEGIN and END except FileName
eg:
FirstFile.txt:
##################
Content of the File Start
AAAAAAAA
BBBBBBB
Content of the File End
##################


Thanks in Advance

Code:

awk '/END/ {flag = 0}
     flag  {print > of}
     /FileName/ {flag = 1;of = $2}' file

Hope this Should Work!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

#!/usr/bin/ksh

i=1
j=1
cat samp | while read line
do
val="END"
value="BEGIN"
if [ $j -le 7 ]
then
if [[ $line != $val && $line != $value ]]
then
echo $line
echo $line >> File$i.txt
j=`expr $j + 1`
fi
if [ $j -eq 7 ]
then
j=0
i=`expr $i + 1`
fi
fi
done

Regards,
Anand

Thanks for Shamrock & Anand for the quick response and sorry for the late acknowledgement

Hi Shamrock & Anand,
I am trying to parse the similar (below mentioned sample.txt) file using the following script. But I am having the following issue:
1. Whitespaces of the file are not maintained.
2. Text (****************************************) is not getting printed.Its getting translated to the script file name.


Script:
#!/usr/bin/sh
i=1
cat sample.txt | while read line
do
var1="END"
var2="BEGIN"
toPrint=`echo $line | cut -c1-7`
toPrintText=`echo $line | cut -c8-`
elif [[ $toPrint == 'TOPRINT' ]]
then
echo toPrintText
elif [[ $line != $var1 && $line != $var2 ]]
then
echo $line >> File$i.txt
elif [[ $line == $var1 ]]
then
i=`expr $i + 1`
fi
done




=========
sample.txt
=========
BEGIN
First File Content Starts here
****************************************

Something or the other here
TOPRINT=This is the text to print on the consolee....
This is the end of the File content
END
BEGIN
Second File Content Starts here
****************************************

Something or the other here
TOPRINT=This is the text to print on the consolee....
This is the end of the File content
END
BEGIN
Third File Content Starts here
****************************************

Something or the other here
TOPRINT=This is the text to print on the consolee....
This is the end of the File content
END



Appreciate your response!

Thanks

Both of these are symptoms of inadequate quoting. The asterisk is a wildcard which gets expanded to a list of file names unless you quote it; perhaps it would be wise to use a different separator.

(This, of course, is a Useless Use of Cat. The recommended idiom is

Code:

while read line
do
   : ...
done <sample.txt

... But don't worry too much about this stylistic detail.)

See how far you can get just by judiciously quoting everything. The use of echo inside backticks is probably going to ruin some of your whitespace anyway -- quite frankly, I would not use a shell script for this. But try modifications like

Code:

var1="END"
var2="BEGIN"
toPrint="`echo "$line" | cut -c1-7`" 
toPrintText="`echo "$line" | cut -c8-`" 
elif [[ "$toPrint" == 'TOPRINT' ]]
	then
	echo "$toPrintText"

(I also added the missing dollar sign on the last line.)

Your "elif" seems to be missing the initial "if" but that's trivial, of course.

Code:

awk 'BEGIN{n=1;FS=":"}
$0 ~ /^BEGIN/ {flag=1;getline;findex=$2;getline}
$0 ~ /^END/ {flag=0;n=n+1}
{
if (flag==1)
file[findex]=sprintf("%s\n%s",file[findex],$0)
}
END{
for (i in file)
{
print i" ----> "file[i]
print "-----------------"
}
}' filename