Add , to end of each line

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Add , to end of each line

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Last edited May 5, 2016

Created on May 5, 2016

This example shows a simple command-line text-processing workflow that appends a comma to the end of every line in a CSV file. The code uses the Unix stream editor `sed` with the substitution expression `s/$/,/g` to insert a comma at each line’s end, then redirects the output to a new file. It demonstrates a lightweight, scriptable approach for formatting tabular data without a visualization library, relying instead on standard shell tools. The data source is the input CSV file, and the rendering approach is plain text output rather than graphical display.

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