Man page - unicode-show(1)

Packages contains this manual

Package:  helper-scripts
apt-get install helper-scripts

Manuals in package:
• unicode-show(1)
• str_replace(1)
• apparmor-info(8)
• stdisplay(1)
• limit-medium(1)
• upgrade-nonroot(8)
• limit-low(1)
• ld-system-preload-disable(8)
• apparmor-watch(8)
• leaktest(8)
• dpkg-noninteractive(8)
• anon-consensus-del(8)
• pwchange(8)
• chmod-calc(1)
• lsmod-deterministic(8)
• dummy-dependency(8)
• apt-get-noninteractive(8)
Documentations in package:
• helper-scripts

Manual

UNICODE-SHOW

NAME
NAME
SYNOPSIS
DESCRIPTION
For each suspicious character, <strong>unicode-show</strong> prints:
What is considered suspicious:
Output formatting:
Color output is disabled if:
OPTIONS
EXIT STATUS
EXAMPLES
Scan a file for suspicious characters:
Scan multiple files:
Scan input from a pipeline:
Disable color output:
ENVIRONMENT
AUTHOR

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NAME

unicode-show - Scan and annotate suspicious Unicode characters

NAME

unicode-show - detect and annotate non-ASCII or suspicious Unicode characters in text or files

SYNOPSIS

unicode-show [ FILE ]...

DESCRIPTION

unicode-show is a utility that reads text input (from standard input or files) and highlights suspicious Unicode characters, such as those outside the safe ASCII range. This tool is useful for identifying potentially malicious or misleading Unicode characters in source code, logs, or user input.

For each suspicious character, <strong>unicode-show</strong> prints:

	•		The line it appears on, annotated with [U+XXXX] markers
	•		A description including the character (if visible), Unicode codepoint, character name, and category

What is considered suspicious:

	•		Characters outside the printable ASCII range ( 0x20 - 0x7E )
	•		Control characters (excluding \n and \t )
	•		Carriage returns ( \r ), even when used in CRLF pairs
	•		Any character not in the standard set of ASCII letters, digits, punctuation, and trailing whitespace

Output formatting:

	•		Annotations are colorized using ANSI escape codes if stdout is a terminal and the environment is color-friendly
	•		Red for inline [U+XXXX] markers
	•		Cyan for character metadata descriptions

Color output is disabled if:

	•		The environment variable $NOCOLOR is set
	•		The environment variable $NO_COLOR is set to 1
	•		$TERM is set to dumb
	•		Output is redirected (non-interactive terminal)

OPTIONS

This tool takes no options. Any arguments are treated as file paths. If no arguments are given, input is read from standard input.

EXIT STATUS

	•		0 - No suspicious Unicode characters found
	•		1 - Suspicious characters were detected
	•		2 - An error occurred (e.g., file I/O or decoding failure)

EXAMPLES

Scan a file for suspicious characters:

unicode-show suspicious.txt

Scan multiple files:

unicode-show file1.txt file2.md

Scan input from a pipeline:

cat file1.txt | unicode-show

Disable color output:

NOCOLOR=1 unicode-show example.txt

ENVIRONMENT

	•		NOCOLOR - disables color output if set
	•		NO_COLOR - disables color output if set to 1
	•		TERM - if set to dumb , disables color output

AUTHOR

This man page has been written by Patrick Schleizer (adrelanos@whonix.org).

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