Organize large DNA txt files
andrew cooke
andrew at acooke.org
Sat Mar 21 15:57:06 EDT 2009
a faster and simpler solution, assuming you are on unix, is to just use
the sort command:
spl6 tmp: cat 1-
1 74 0 0 6 0
1 78 0 0 4 0
1 89 0 0 0 2
spl6 tmp: cat 1+
1 73 0 1 0 0
1 76 1 0 0 0
1 77 0 1 0 0
spl6 tmp: sort -n -k 2,2 1[-+]
1 73 0 1 0 0
1 74 0 0 6 0
1 76 1 0 0 0
1 77 0 1 0 0
1 78 0 0 4 0
1 89 0 0 0 2
bash can also iterate over files trivially. you do not need python for this.
andrew
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