Ecosyste.ms: Awesome

An open API service indexing awesome lists of open source software.

Awesome Lists | Featured Topics | Projects

https://github.com/kgryte/shell-compute

Collection of shell scripts for computation.
https://github.com/kgryte/shell-compute

Last synced: 25 days ago
JSON representation

Collection of shell scripts for computation.

Host: GitHub
URL: https://github.com/kgryte/shell-compute
Owner: kgryte
License: mit
Created: 2014-10-11T02:49:54.000Z (about 10 years ago)
Default Branch: master
Last Pushed: 2014-10-11T23:13:41.000Z (about 10 years ago)
Last Synced: 2024-05-02T06:17:00.052Z (6 months ago)
Language: Awk
Size: 152 KB
Stars: 3
Watchers: 3
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

Awesome Lists containing this project

README

shell-compute
===========

> Collection of shell scripts for computation.

## Usage

To use a script, you can either stream a data file

``` bash
$ awk -f
```

or pipe output from a `command`

``` bash
$ command | awk -f
```

## Notes

Each program works on a single column of data. For most programs, you specify the column over which to perform the computation by passing a `col` parameter. For example,

``` bash
$ echo $'1 2\n1 2\n1 2' | awk -v col=2 -f sum.awk
# 6
```

instructs `sum.awk` to sum over the second column.

## Programs

### Statistics

#### count

Compute the total number of values.

``` bash
$ echo $'1\n2\n4' | awk -f count.awk
# 3
```

#### min

Compute the minimum value.

``` bash
$ echo $'5\n2\n8' | awk -v col=1 -f min.awk
# 2
```

#### max

Compute the maximum value.

``` bash
$ echo $'5\n2\n8' | awk -v col=1 -f max.awk
# 8
```

#### sum

Compute the sum.

``` bash
$ echo $'1\n2\n3' | awk -v col=1 -f sum.awk
# 6
```

#### mean

Compute the arithmetic mean.

``` bash
$ echo $'5\n2\n8' | awk -v col=1 -f mean.awk
# 5
```

#### median

Compute the median.

``` bash
$ echo $'5\n2\n8\n6' | sort -n | awk -v col=1 -f median.awk
# 5.5
```

Note: the values over which to compute the median should be __sorted__.

## Examples

To run the examples, navigate to the `/examples` directory

``` bash
$ cd examples
```

and run

``` bash
$ bash ./examples.sh
```

## License

[MIT license](http://opensource.org/licenses/MIT).