Help Needed in SED

raghav1982 · #1 (**permalink**) 04-05-2008

Hi All ,

I have a input file which has set of lines like this ::

cat a.txt

unix1 djkdfkjdkkdfkdjfdfkjd 09191091 unix@unix.com <2008-23-07>
unix 2 dfdfdfdfdfdfdfdfdfd

unix3 dfldfljdflkjdfldfkljdfldjfl 0565606 unix1@unix.com <2008-10-09>
unix4 dfdlfndfldflnlffddfd

for some reason when i execute the SED command to bring it to single line , the code works partially

sed '=' a.txt | \
sed '{
N
s/\n/ /
}' a.txt > b.txt

the output is like this ::

unix1 djkdfkjdkkdfkdjfdfkjd 09191091 unix@unix.com <2008-23-07> unix 2 dfdfdf
dfdfdfdfdfdfd
unix3 dfldfljdflkjdfldfkljdfldjfl 0565606 unix1@unix.com <2008-10-09>
~

can you help me how to bring all those lines into single lines my output should be something like this :::

unix1 and unix2 shoule be in a single line
unix1 djkdfkjdkkdfkdjfdfkjd 09191091 unix@unix.com <2008-23-07> unix 2 dfdfdfdfdfdfdfdfdfd

and unix3 and unix4 should be in single line :::

unix3 dfldfljdflkjdfldfkljdfldjfl 0565606 unix1@unix.com <2008-10-09> unix4 dfdlfndfldflnlffddfd

Franklin52 · #2 (**permalink**) 04-05-2008

If you don't have blanc line between the 2 lines this should work:

Code:

sed '{N; s/\n/ /}' a.txt > b.txt

Regards

cfajohnson · #3 (**permalink**) 04-05-2008

Code:

awk '/^$/ { print ""; next }
          { printf "%s ", $0 }
      END { print "" }' a.txt > b.txt

raghav1982 · #4 (**permalink**) 04-06-2008

Thanks All for your Help!! Works perfectly!!

summer_cherry · #5 (**permalink**) 04-07-2008

Code:

cat filename | paste - -

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
help needed	nnayagam	Shell Programming and Scripting	2	03-07-2008 06:34 AM
Little help needed.	Netghost	AIX	5	08-10-2006 02:29 PM
Help needed	dsravan	Shell Programming and Scripting	2	07-20-2006 09:37 AM
awk help needed.	cskumar	Shell Programming and Scripting	0	07-20-2006 07:24 AM
Sed help needed	stevefox	Shell Programming and Scripting	5	12-05-2005 01:44 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread:


	Powered by