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annotate bin/budget.sh @ 536:0e0222cd3cab

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.bashttw
author Jeff Hammel <jhammel@mozilla.com>
date Thu, 26 Sep 2013 11:28:32 -0700
parents 25e92f9cf011
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
492
25e92f9cf011 bin/budget.sh
Jeff Hammel <jhammel@mozilla.com>
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1 #!/bin/bash
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2
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3 # from http://c2.com/doc/expense/
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4
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5 exec awk ' $1 ~ /^[A-Z]+[A-Z0-9]*$/ { if (sums[$1] == "" || $1 == "SUM") { sums[$1] = sum # Define Symbol $1 = sum sum = 0 } else { $1 = sums[$1] # Dereference Symbol } } ($1+0) != 0 {$1 = sprintf("%7.2f", $1)} # Pretty Print {print} $2 == "*" {$1 *= $3} # Explicit Calculations $2 == "/" {$1 /= $3} $2 == "DB" {$1 = -$1} $2 == "CR" {$1 = -$1} NF == 0 {sum = 0} # Implicit Summation {sum += $1} ' $1