numfmt

Convert numbers to and from human-readable strings. More information: https://www.gnu.org/software/coreutils/numfmt.

• Convert 1.5K (SI Units) to 1500:

numfmt --from=si 1.5K

• Convert 5th field (1-indexed) to IEC Units without converting header:

ls -l | numfmt --header=1 --field=5 --to=iec

• Convert to IEC units, pad with 5 characters, left aligned:

du -s * | numfmt --to=iec --format="%-5f"