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Unix Power Tools is a great reference for data analysis. The author does not mention the chapter on: "You Can't Quite Call this Editing" which I used extensive
by solsenNet 15y ago
Unix Power Tools is a great reference for data analysis.
The author does not mention the chapter on: "You Can't Quite Call this Editing" which I used extensively for some pretty involved flat file data analysis.
covers the great tools:
cut
tr
sort
uniq
also:
piping to grep and grep -v (invert match)
I also came across this great line in the sort man page for allocating in-memory usage SIZE for the sorting data:
SIZE may be followed by the following multiplicative suffixes: % 1% of memory, b 1, K 1024 (default), and so on for M, G, T, P, E, Z, Y.
...that says about all you need to know about unix ;)