Looking for a command to print a section of a file specifed by a begin
character offset and an end character offset. Assuming such a command
is called "mid" then
mid 30 60 somefile
would output characters starting at offset 30 thru offset 60 of the file.
cut only works on LINES in a file so I cooked up a script using head and
tail that does the trick:
# validate arguments
# ...
START=$1
END=$2
FILENAME=$3
LENGTH=$(($END - $START))
head -c$END $FILENAME | tail -c$LENGTH
I guess dd would do it too, but is there something already existing
analogous to head and tail (mid, belly, navel, waist, abs, gut, hips,
rib?!) that does this?
Ed.
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