OS Manuals

/usr/bin/isutf8

A collection of the unix tools that nobody thought to write long ago

From moreutils 0.70-r2 (enterprise-packages), captured 2026-11-08 by running isutf8 --help (exit 0). permalink

Usage: /usr/bin/isutf8 [OPTION]... [FILE]...
Check whether input files are valid UTF-8.

  -h, --help       display this help text and exit
  -q, --quiet      suppress all normal output
  -l, --list       print only names of FILEs containing invalid UTF-8
  -i, --invert     list valid UTF-8 files instead of invalid ones
  -v, --verbose    print detailed error (multiple lines)

This is version 1.2.
Options (5)
OptionDescriptionSource
-h, --helpdisplay this help text and exithelp
-q, --quietsuppress all normal outputhelp
-l, --listprint only names of FILEs containing invalid UTF-8help
-i, --invertlist valid UTF-8 files instead of invalid oneshelp
-v, --verboseprint detailed error (multiple lines)help

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.