Awk script based calculator with floating point support
This project was tested with GNU flavored Awk, AKA gawk
; before opening new Issues please ensure that version 4.1.4
or greater is installed...
- Arch based Operating Systems
sudo packman -Syy
sudo packman -S gawk
- Debian derived Distributions
sudo apt-get update
sudo apt-get install gawk
Clone this project...
Linux/MacOS
mkdir -vp ~/git/hub/awk-utilities
cd ~/git/hub/awk-utilities
git clone git@github.com:awk-utilities/calc.git
Install via linked-install.sh
script...
cd ~/git/hub/awk-utilities/calc
./linked-install.sh
Linux based distributions with MAwk, GAwk, and/or Awk installed generally may run Awk scripts directly, eg...
calc.awk <<<'2 + 2'
#> 4
... however, some systems do not have the Awk executable linked to /usr/bin/awk
file path, in such cases Awk scripts must be invoked via...
awk -f ./calc.awk <<<'4.2 - 8'
#> -3.8
Because this script is line orientated, multiple separate/independent calculations may be preformed, and built-in Awk functions may be called, eg...
calc.awk <<EOF
6^2
sqrt(81)
EOF
#> 36
#> 9
... or file(s) may be used as script input...
equations.txt
7**7
40+2
99/11
calc.awk equations.txt
#> 823543
#> 42
#> 9
Warning large numbers will overflow Awk, at which point inf
is returned, eg...
calc <<<'2**1024'
#> inf
... Additionally mixing inf
with -inf
will often result in -nan
, eg...
calc <<<'(2**1024) - (2**1024)'
#> -nan
Options for contributing to calc and awk-utilities
Start making a Fork of this repository to an account that you have write permissions for.
- Add remote for fork URL. The URL syntax is
git@github.com:<NAME>/<REPO>.git
...
cd ~/git/hub/awk-utilities/calc
git remote add fork git@github.com:<NAME>/calc.git
- Commit your changes and push to your fork, eg. to fix an issue...
cd ~/git/hub/awk-utilities/calc
git commit -F- <<'EOF'
:bug: Fixes #42 Issue
**Edits**
- `<SCRIPT-NAME>` script, fixes some bug reported in issue
EOF
git push fork main
Note, the
-u
option may be used to setfork
as the default remote, eg.git push fork main
however, this will also default thefork
remote for pulling from too! Meaning that pulling updates fromorigin
must be done explicitly, eg.git pull origin main
- Then on GitHub submit a Pull Request through the Web-UI, the URL syntax is
https://github.com/<NAME>/<REPO>/pull/new/<BRANCH>
Note; to decrease the chances of your Pull Request needing modifications before being accepted, please check the dot-github repository for detailed contributing guidelines.
Thanks for even considering it!
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Awk script based calculator with floating point support
Copyright (C) 2020 S0AndS0
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, version 3 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
For further details review full length version of AGPL-3.0 License.