I am visualizing occult characters from a text file with od -c . Here I show you the tail of this output:
0014120 . f a s t q . g z \t N o n e \n N
0014140 s a m p \t S s a m p l e 3 3 4 _
0014160 1 1 1 0 1 9 \t s a m p I _ S 1 3
0014200 _ L 0 0 1 _ R 1 _ 0 0 1 . f a s
0014220 t q . g z \t N O n e m _ S 1 3 _
0014240 L 0 0 1 _ R 2 _ 0 0 1 . f a s t
0014260 q . g z \t N o n e \n
0014271
I have removed the last newline character from the file applying truncate command, but I am not able to remove the last occult line. I would like to get this:
0014120 . f a s t q . g z \t N o n e \n N
0014140 s a m p \t S s a m p l e 3 3 4 _
0014160 1 1 1 0 1 9 \t s a m p I _ S 1 3
0014200 _ L 0 0 1 _ R 1 _ 0 0 1 . f a s
0014220 t q . g z \t N O n e m _ S 1 3 _
0014240 L 0 0 1 _ R 2 _ 0 0 1 . f a s t
0014260 q . g z \t N o n e
Do you know what do I need to get it?
Thanks in advance
You can try something like:
awk '{if ($2!="") print}' input_file
this will check if second token is not empty string (as it is on the last line) and if it is not print the line
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