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Is it also possible to give cut the vertical lines to delete.
For Example:

cat input.txt | cut 4 > output.txt


to delete the 4th column?

Thank you!
It works but for handling it would be nice if there is a way to input the vertical line numbers via command line.
Otherwise i have to write (i != 1 && i !=2 && i !=3 && i !=17 ..........

The complete file has 150.000 vertical lines and 200 horizontal lines.
Input:
FSLMFFLVMMNLIGLV-PFVY
ICVLMLVMTLNLSGMV-PGVF
ALLFNSVVFANCFGMI-PYVF
AALFASLLVLNLLGLV-PYVF
SSLFMMIIIFNLLGLI-PYMF...

Sorry maybe i should explain it better...
The text file looks like this:

masldfjla
afsajfwel
sajfljsaf
safsarfrl
sajfeljwq

There are no numbers in the real file.
The next problem is that...

Hi everybody!

I need to delete several vertical lines in a huge text file.
It should work like the example below. Delete the vertical lines 2 and 8.

123456789
masldfjla
afsajfwel...