F Zimmermann wrote:
hello a have a little problem. I scanned a DNA sequence and the OCR software changed colums and rows. So instead of aaaaaaaaaa bbbbbbbbbb cccccccccc aaaaaaaaaa bbbbbbbbbb cccccccccc I got this aaaaaaaaaa aaaaaaaaaa bbbbbbbbbb bbbbbbbbbb cccccccccc cccccccccc How can I change them back into the right order? Really thankfull for any hints, Frank
Assuming the wrong format is in a file called columns.txt and we are going to correct it and put it in a file called rows.txt
for i in 1 2 ; do cut -d' ' -f$i columns.txt | tr '\n' ' ' >> rows.txt ; echo >> rows.txt ; done
If your real data has more than 2 columns like your example here, just add the appropriate amount of numbers to the "for i in 1 2" part