Shell Programming and Scripting

bee  +
see  +
jee   -
bep  +
iott  +
mun -
moo -

see  +
jee   -
iott  +
mun -

$2 ~ /+/{
        prev=$0;
        getline;
        if( $2 == "-"){ printf("%s\n%s\n",prev,$0)}
        else { prev =$0;
               getline;
               if( $2 == "-"){ printf("%s\n%s\n",prev,$0)}
              }
        }

awk -f awkscrfile  filename

$2 ~ /\+/{

cat filename | perl -e 'while (<>){
chomp;
($word,$sign) = split("\ ");
if ($prev_sign && $prev_sign ne $sign){
print "$prev_word\t$prev_sign\n$word\t$sign\n";
($prev_sign,$prev_word) = ("","");
}
else {
($prev_sign,$prev_word) = ($sign,$word);
}
}
'
see     +
jee     -
iott    +
mun     -

$ sed -n '/-$/{x; /+$/{p;x;p;};};h' data
see  +
jee   -
iott  +
mun -

while(<DATA>){
	if(!/-/){
		$tmp=$_;
	}
	else{
		if($tmp ne ""){
			print $tmp;
			print;
			$tmp="";
		}
	}
}
__DATA__
bee + 
see + 
jee - 
bep + 
iott + 
mun - 
moo -