modifiedfiles

modifiedfiles is a script to find which files of a given extension have been modifiled in the last N days, with current directory as the root for tree search, e.g., nb (Mathematica) files in the last month:

modifiedfiles --ext=nb --last=30

#!/bin/bash
# __  __           _ _  __ _          _ _____ _ _           
#|  \/  | ___   __| (_)/ _(_) ___  __| |  ___(_) | ___  ___ 
#| |\/| |/ _ \ / _` | | |_| |/ _ \/ _` | |_  | | |/ _ \/ __|
#| |  | | (_) | (_| | |  _| |  __/ (_| |  _| | | |  __/\__ \
#|_|  |_|\___/ \__,_|_|_| |_|\___|\__,_|_|   |_|_|\___||___/
# F.P. Laussy 
# v°0.1 laussy.org/wiki/modifiedfiles
#
# modifiedfiles - List files of a given extension modified in the last N days
# (newest first, full absolute paths)
#
# Usage:
#   modifiedfiles --ext=nb --last=30
#   (or --ext nb --last 30, order doesn't matter)
#
# Searches recursively from the CURRENT directory.
# Outputs one full absolute path per line (most terminals make these clickable
# with Ctrl+Click or just click). Filename is part of the path.

EXT=""
DAYS=""

while [[ $# -gt 0 ]]; do
    case $1 in
        --ext=*)
            EXT="${1#*=}"
            shift
            ;;
        --ext)
            shift
            EXT="$1"
            shift
            ;;
        --last=*)
            DAYS="${1#*=}"
            shift
            ;;
        --last)
            shift
            DAYS="$1"
            shift
            ;;
        *)
            echo "Unknown option: $1" >&2
            echo "Usage: $(basename "$0") --ext=<ext> --last=<days>" >&2
            exit 1
            ;;
    esac
done

if [[ -z "$EXT" || -z "$DAYS" ]]; then
    echo "Usage: $(basename "$0") --ext=<extension> --last=<days>" >&2
    echo "Example: modifiedfiles --ext=nb --last=30" >&2
    exit 1
fi

# Strip leading dot if someone passes .nb (harmless)
EXT="${EXT#.}"
DIR="$(pwd)"

# Find → timestamp + path → sort newest first → extract path
find "$DIR" -type f -name "*.$EXT" -mtime -"$DAYS" -printf '%T@ %p\n' \
    | sort -nr \
    | cut -d' ' -f2-