#Files

5 snippets

• PHP Tested

  Read a large CSV file with a generator

  Stream CSV rows as associative arrays using fgetcsv, without loading the whole file into memory.

• Python Tested

  Read a CSV file as dictionaries

  Stream CSV rows as dicts keyed by header with csv.DictReader, handling UTF-8 BOMs and quoted commas.

• Bash

  Delete files older than N days

  Safely remove old log or temp files with find, previewing first and handling unusual filenames.

• Python Tested

  Write a file atomically

  Write to a temporary file and rename it into place so readers never see a half-written file.

• Bash

  Timestamped tar.gz backup that keeps the newest N

  Archive a directory with a sortable timestamp and delete older backups beyond a retention count.