Append new line.

[shaokat]

I have the foll input file:

=============
1 TRUMAN
- CLINTON
0 GEORGE
===========EOF
For every 1st char, I have to do the following:
if 1st char is - leave 1 line before.
if 1st char is 0 leave 2 line before.

This is the expected output.
=============
1 TRUMAN

CLINTON


GEORGE
===========EOF

TIA,
KAT

 

[marsd]

awk ' {

                if ($1 == "-") {
                   printf "\n%s", $2 ; next
                }

                if ($1 == "0") {
                   printf "\n\n\n%s\n", $2 ; next
                }

                print $0
}' scrap.txt

 

[iribach]

my version:

awk '
/^0 /{$1="\n\n";}
/^- /{$1="\n";}
{print;} # see NOTA
' scrap.txt

#NOTA: the print statement is my be not needed, awk prints by default, but i am not on my unix box actually.