ridulfo / awk3

Don't know awk? Write python

Want to do some replacing which includes processing, but cannot be bothered learning awk?

With awk3 you can write advanced text processing code using python.

Installation

pip install git+https://github.com/ridulfo/awk3.git

Examples:

Increment all numbers in the text files

A command to run int(m[0]) + 1 on every match of (\d+) in all .txt files:

find *.txt | xargs cat | awk3 "(\d+)" "int(m[0]) + 1"

Capitalize all week days

cat weekdays.txt | awk3 "([a-zA-Z]+day)" "m[0].capitalize()"

or

awk3 -f weekdays.txt "([a-zA-Z]+day)" "m[0].capitalize()"

Help awk3 --help

usage: awk3 [-h] [-f F] pattern code

A simple awk implementation

Takes a file or stdin, a pattern and some python code.
Outputs the processed text to stdout.

The "pattern" is a regex pattern that will be matched against the file.
The "code" is python code that will be evaluated for every match. The python
code has access to a local variable `m` which is a tuple of the matched groups.

Example:
$ cat file.txt
Adam, 23
Bob, 24
Charlie, 25
$ awk3 file.txt "(\d+)" "int(m[0]) + 1"
Adam, 24
Bob, 25
Charlie, 26

positional arguments:
  pattern     pattern to match
  code        python code to calculate replacement

options:
  -h, --help  show this help message and exit
  -f F        path to file