I have lines of data that contain single column and two columns. What I want to do is to extract lines that contain only 2 columns.
0333 foo
bar
23243 qux
yielding only:
0333 foo
23243 qux
Note that they are tab separated, even for lines with only one column you have tab at the beginning.
What's the way to do it?
I tried this but fail:
awk '$1!="";{print $1 "\t" $2}' myfile.txt
enter code here