linux - Remove columns from file bash tools -


i have large file 200,000 columns , 5000 rows. here short example of file, columns 1 , 5 duplicated.

abf bgj csd daa abf efg ...   0   1   2   1   0   1.1    2   0.1 1.2 0.3 2   1     ...

here example of result need. column 5 in original file has been deleted.

abf bgj csd daa efg ...   0   1   2   1   1.1     2   0.1 1.2 0.3 1       ...

some of columns duplicated several times. need remove duplicates data (keeping first instance) using bash tools. can´t sort data because need keep order.

$ cat tst.awk nr==1 {     (i=1;i<=nf;i++) {         if (!seen[$i]++) {             f[++nf]=i         }     } } {     (i=1;i<=nf;i++) {         printf "%s%s", $(f[i]), (i<nf?ofs:ors)     } }  $ awk -f tst.awk file | column -t abf  bgj  csd  daa  efg 0    1    2    1    1.1 2    0.1  1.2  0.3  1

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