files

one-liners (mostly) to manage files

merge files and add filename to text

find . -maxdepth 1 -type f -name "*en.srt" -exec sh -c 'echo "=== {} ==="; cat "{}"' \; > combined_files.txt

find and delete

find . -type f -path '*4.3*/*' -name '*.yml' -exec rm {} -i \;

(-i interactive)

find files (.pl.) and count words

find ./ -type f -name "*.pl.*" -exec wc -w {} +

find the newest file recursively

find $1 -type f -exec stat --format '%Y :%y %n' "{}" \; | sort -nr | cut -d: -f2- | head

(supports filenames with spaces). Performance improved with xargs:

find $1 -type f -print0 | xargs -0 stat --format '%Y :%y %n' | sort -nr | cut -d: -f2- | head

find image files in directory

find . -type f -exec file --mime-type {} + | grep "image/"

or simply by extension (-iname for case insensitive seach)

find . -type f -iname "*.{png,gif,jpg,jpeg}"

windows gitbash version:

find . -type f | grep -iE '\.png$|\.gif$|\.jpg$|\.jpeg$'

or just all contents of images/ dirs

find . -type d -name "images" -exec find {} -type f \;

find images in html files:

grep -r . -e '<img[^>]*src="[^"]*"' --include=*.html > images_in_htmls.txt

find images in markdown files:

grep -r . -e '\!\[' --include=*.md > images_in_mds.txt

count files in subdirectories

mindepth and maxdepth to only check immediate descendants. add -name e.g "*.md" etc to only count certain filetype

find . -mindepth 1 -maxdepth 1 -type d -exec sh -c 'echo -n "{}: "; find "{}" -type f | wc -l' \;

batch rename files

$ for file in *; do
    extension="${file##*.}"
    filename="${file%.*}"
    new_filename="${filename}_pl.${extension}"
    mv "$file" "$new_filename"
done