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Split data into multiple lines

 
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Top Forums UNIX for Dummies Questions & Answers Split data into multiple lines
# 1  
Old 07-30-2007
Split data into multiple lines
All,

I have a requirement where I will need to split a line into multiple lines.

Ex:

Input:

2ABCDEFGH2POIYUY2ASDGGF2QWERTY

Output:

2ABCDEFGH
2POIYUY
2ASDGGF
2QWERTY

The data is of no fixed lenght. Only the lines have to start with 2.

How can this be done.

Thanks
KP.
# 2  
Old 07-30-2007
nawk -v RS="2" 'length()==0{next}{print "2" $0}' <<EOF
2ABCDEFGH2POIYUY2ASDGGF2QWERTY
EOF
2ABCDEFGH
2POIYUY
2ASDGGF
2QWERTY
# 3  
Old 07-31-2007
Quote:
Originally Posted by awk
nawk -v RS="2" 'length()==0{next}{print "2" $0}' <<EOF
2ABCDEFGH2POIYUY2ASDGGF2QWERTY
EOF
2ABCDEFGH
2POIYUY
2ASDGGF
2QWERTY
not exactly....
Code:
nawk -v RS="2" 'length()==0{next}{print "2" $0}' <<EOF
> aa2ABCDEFGH2POIYUY2ASDGGF2QWERTY
> EOF
2aa
2ABCDEFGH
2POIYUY
2ASDGGF
2QWERTY

a bit better:
Code:
echo 'aa2ABCDEFGH2POIYUY2ASDGGF2QWERTY' | nawk 'gsub("2", "\n2")' | sed '/^$/d'
aa
2ABCDEFGH
2POIYUY
2ASDGGF
2QWERTY

# 4  
Old 07-31-2007
Code:
echo "2ABCDEFGH2POIYUY2ASDGGF2QWERTY" | sed -e 's/2/\
2/g'

# 5  
Old 07-31-2007
Matrix,
Your 'sed' solution displays the first line as empty:
Code:
2ABCDEFGH
2POIYUY
2ASDGGF
2QWERTY

Vgersh removed this line with:
Code:
sed '/^$/d'

Your solution could be modified not to generate the empty line:
Code:
echo "2ABCDEFGH2POIYUY2ASDGGF2QWERTY" | sed -e 's/\(.\)2/\1\
2/g'

Output:
Code:
2ABCDEFGH
2POIYUY
2ASDGGF
2QWERTY

# 6  
Old 07-31-2007
Quote:
Matrix,
Your 'sed' solution displays the first line as empty:
Thats a catch ! Smilie

Sorry I didn't notice that.

Thanks for correcting it ! Smilie
 
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