gotools

gotools

A collection of command line tools written in Go

• console - get the size of a console
• counter - count up or down with big numbers
• date-math - find difference between two dates
• db - simple name/value storage
• db2 - complex data storage with forms ; in progress
• iif - inline if for scripting
• isodate - current date in iso format because date stinks
• md2html - template based HTML generator from markdown source
• roll - rotate files like logs ; in progress
• rpn - an RPN calculator
• scale - console line chart scroler ; experimental
• smatrix - like cmatrix but a little basic ; experimental
• striper - remove spaces from lines or words
• thru - Marshal-Unmarshal example

Details

iif

Inline If returns a value if the left and right operands meet a condition

Usage: iff -left 10 -test '==' -right 10

rpn

A Reverse Polish Notation calculator

rpn --interactive
rpn --formula 'formula'
echo 'formula' | rpn
    --pop return only last value
    --verbose print out some extra details

Use: 2 3 + print

scale

Usage:

echo 10 20 30 40 50 60 50 40 30 20 10 | scale -wait 10

↑⎺↑⎺↑⎺↑⎺↑⎺↑⎺⎻──⎼⎽
floor: 0.000000, avg: 32.727273, ceil: 60.000000
w=18, c=11

Arrows show a scale change, you can avoid them by setting a ceil or floor value through command line flags.