Text Processing

Command	Description
grep	Filter lines by regex
column	Extract field by position
pad-left / pad-right	Pad string to width
regex-match	Extract regex matches
regex-replace	Replace by regex
remove-spaces	Remove all spaces
remove-newlines	Remove all newlines
count-words	Word count
count-chars	Character count
sort-lines	Sort alphabetically
reverse-lines	Reverse line order
shuffle-lines	Shuffle randomly
unique-lines	Remove duplicates
count-lines	Line count
number-lines	Prepend line numbers
morse-encode / morse-decode	Morse code
caesar-encode / caesar-decode	Caesar cipher
markdown-html	Markdown → HTML
base-convert	Arbitrary base conversion
zeropad	Zero-pad a number

Examples

cat file.txt | tweak grep --pattern "^error"
echo "one two three" | tweak column --field 2
echo "5" | tweak pad-left --width 4 --char 0
echo "hello" | tweak regex-replace --pattern "l+" --replace "L"
echo "SOS" | tweak morse-encode
tweak zeropad --n 6 "42"