AWK meets Python: API, CLI and magics
A simple subprocess based Pythonic interface for Awk, which powers a command-line REPL and Jupyter magics.
pip install awkupy- Python class to call AWK via subprocess - see an example.
- IPython / Jupyter magics:
%awkand%%awk, enabling polyglot programming with Awk. See example and the tutorial for more details.
In [1]: %load_ext iawk
In [2]: cd doc/examples/
/home/avmo/src/projects/awkupy/doc/examples
In [3]: %%awk --stdout coins.txt
...: {
...: country[$4]++
...: }
...:
...: END {
...: for (i in country) print "Country: " i," count: ", country[i]
...: }
...:
...:
Country: USA count: 7
Country: PRC count: 1
Country: Austria-Hungary count: 1
Country: Canada count: 1
Country: Switzerland count: 1
Country: RSA count: 2- IAwk: interactive AWK prompt modelled after IPython.
❯❯❯ iawk (awkupy)
Welcome to the IAwk shell. Type help or ? to list commands.
Prefix ! to run system commands
iawk [1]: help
Documented commands (type help <topic>):
========================================
EOF cd exit help hist history input ls reset run set shell show
iawk [2]: cd doc/examples/
doc/examples/
iawk [3]: ls
coins.txt coins_histogram.py coins_histogram.awk
iawk [4]: set pattern /gold/
iawk [5]: set action print $0
iawk [6]: input coins.txt
iawk [7]: show
#!/usr/bin/awk -f
/gold/ {print $0}
iawk [8]: run
iawk [9]: gold 1 1986 USA American Eagle
gold 1 1908 Austria-Hungary Franz Josef 100 Korona
gold 1 1984 Switzerland ingot
gold 1 1979 RSA Krugerrand
gold 0.5 1981 RSA Krugerrand
gold 0.1 1986 PRC Panda
gold 0.25 1986 USA Liberty 5-dollar piece
gold 0.25 1987 USA Constitution 5-dollar piece
gold 1 1988 Canada Maple Leaf
iawk [9]: exit- To awk or not to ... - excellent tutorial on Awk