Bandwidth monitor

[Jonathan Hutchins]

Hal, thanks, but here's what I get:

# ./bw.sh
./bw.sh: ) / ${interva
l}: bad substitution
./bw.sh: ) / ${interva
l}: bad substitution
./bw.sh: [: -gt: unary operator expected
./bw.sh: [: -gt: unary operator expected
./bw.sh: command substitution: line 1: unexpected EOF while looking for
matching `"'
./bw.sh: command substitution: line 3: syntax error: unexpected end of file
./bw.sh: ) / ${interva
l}: bad substitution
./bw.sh: ) / ${interva
l}: bad substitution
./bw.sh: [: -gt: unary operator expected
./bw.sh: [: -gt: unary operator expected
./bw.sh: command substitution: line 1: unexpected EOF while looking for
matching `"'
./bw.sh: command substitution: line 3: syntax error: unexpected end of file
./bw.sh: ) / ${interva
l}: bad substitution
./bw.sh: ) / ${interva
l}: bad substitution
./bw.sh: [: -gt: unary operator expected
./bw.sh: [: -gt: unary operator expected