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Shell to remove a newline char from selected rows in a file.

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# 1  
Old 02-02-2012
Shell to remove a newline char from selected rows in a file.
Greetings!

Can we automate the process of removing a newline char from selected rows in a fixed width file using a shell?
Input is like

Code:
abcd1234
xyzd1234
abcd
a1b2c3d4
abcd1234
xyzd1234
xx
abcd1234

Expected output -
Code:
abcd1234xyzd1234
abcda1b2c3d4abcd1234xyzd1234
xxabcd1234

Note - its like if in above case no of characters in a line -eq 9 (including new line char) remove newline char else not.

Appreciate your help!
Thanks
Last edited by radoulov; 02-02-2012 at 06:29 PM.. Reason: Code tags!
# 2  
Old 02-02-2012
Hi, what have you tried so far?
# 3  
Old 02-02-2012
This post is duplicated. There is one identical in UNIX for Dummies Questions & Answers

Regards,
Birei.
# 4  
Old 02-03-2012
Code:
echo "abcd1234
xyzd1234
abcd
a1b2c3d4
abcd1234
xyzd1234
xx
abcd1234" | awk '{if(length($1)==8){printf("%s",$1)}else{printf("\n%s",$1)}}'

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