arzzen / Pert
Licence: mit
A simple command line (bash/shell) utility to estimate tasks using PERT [Program Evaluation and Review Technique]
Stars: ✭ 66
Programming Languages
shell
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Bash PERT Calculator
A simple utility to estimate tasks using PERT (Program evaluation and review technique)
Demo
Usage
Comma separated task list in the form "1,2,12 4,5,9 2,3,6"
, where whitespace separates tasks.
(or you can use piping inputs echo "1,2,3 10,30,40" | pert
)
Usage:
pert [optimistic,realistic,pessimistic]
Example:
pert 1,3,4
pert 10,15,20 5,7,10
pert "1,2,3" "15,17,20"
cat data.txt | pert
echo "1,2,3 9,10,14" | pert
Install
$ git clone https://github.com/arzzen/pert.git && cd pert
$ sudo make install
For uninstalling, open up the cloned directory and run
sudo make uninstall
Example
Command:
$ ./pert 5,7,10 2,3,4 10,12,14
Output:
Tasks +--------------------------------------------------------------------------------------+ | # | optimistic | realistic | pessimistic | duration | risk | variance | +--------------------------------------------------------------------------------------+ | 1. task | 5 | 7 | 10 | 7.16 | 0.83 | 0.68 | | 2. task | 2 | 3 | 4 | 3.00 | 0.33 | 0.10 | | 3. task | 10 | 12 | 14 | 12.00 | 0.66 | 0.43 | +--------------------------------------------------------------------------------------+ | summary | - | - | - | 22.16 | 1.82 | 1.21 | +--------------------------------------------------------------------------------------+ Three point estimates +----------------------------------------+ | confidence | | | +----------------------------------------+ | 1 Sigma - 68% | 20.34 | 23.98 | | 2 Sigma - 95% | 18.52 | 25.80 | | 3 Sigma - 99% | 16.70 | 27.62 | +----------------------------------------+
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