bash - Copy File ignoring Column(s) -


i have .txt this:

dummy1, dummy2, dummy3, dummy4,  dummy1, dummy2, dummy3, dummy4, dummy1, dummy2, dummy3, dummy4, dummy1, dummy2, dummy3, dummy4, dummy1, dummy2, dummy3, dummy4,

i want save information in file, ignoring (for example) column 2 and/or 4. how can it?

if have access awk command then:

awk '{ $2=""; $4=""; print}' test.txt > new.txt

where $2 second column , $4 fourth. contents of new.txt file be:

dummy1, dummy3, dummy1, dummy3, dummy1, dummy3, dummy1, dummy3, dummy1, dummy3,

just change columns in print different configurations. i.e.

awk '{ $2=""; print}' test.txt > new.txt

the contents of new.txt file be:

dummy1, dummy3, dummy4, dummy1, dummy3, dummy4, dummy1, dummy3, dummy4, dummy1, dummy3, dummy4, dummy1, dummy3, dummy4,

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