Data Munging

Double-space a file: sed -G

Add a newline after every two lines: sed '0~2 s/$/\n/'

Replace newlines with arbitrary text: awk '{ print }' RS='\n' ORS='arbitrary_text'

Work with human-readable e.g. disk ^2 sizes: numfmt --from=iec and numfmt --to=iec

Search Oracle lobs for strings: select whatever from atable where (dbms_lob.instr(lob_column,utl_raw.cast_to_raw('text_to_look_for')) > 0)

FPAT dirty quoted CSV awk:

BEGIN {
    FPAT = "([^,]+)|(\"[^\"]+\")"
}

(doesn't handle newlines in quotes or escaped quotes though)

Paginated json coming back from a rest api? Use a Generator to return it.