LinuxCommandLibrary

chars

Convert strings to character arrays

TLDR

Look up a character by its value

$ chars '[ß]'
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Look up a character by its Unicode code point
$ chars [U+1F63C]
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Look up possible characters given an ambiguous code point
$ chars [10]
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Look up a control character
$ chars "[^C]"
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SYNOPSIS

N/A - A standard chars command does not exist in common Linux distributions.

PARAMETERS

N/A
    No such command or options to describe.

DESCRIPTION

The name 'chars' does not correspond to a standard, standalone command or utility in common Linux distributions. While there isn't a dedicated command named 'chars' for general character operations, the concept of 'characters' is fundamental to Linux and computing. It often refers to:

  • Character encoding (e.g., ASCII, UTF-8, ISO-8859-1) which defines how characters are represented digitally.
  • The display and manipulation of various character types (printable, non-printable, control characters).
  • Character classes used in regular expressions (e.g., in grep, sed, awk) to match specific sets of characters (like alphanumeric, digits, whitespace).

Tasks related to character handling are typically performed by specific options of other general-purpose commands or by dedicated utilities for encoding conversion.

CAVEATS

The name 'chars' does not correspond to a standard, standalone command in common Linux distributions. It is possible the query refers to a specific utility developed for a particular system, a misremembered command name, or a conceptual reference to character handling within various commands and programming contexts. Users looking to perform operations related to characters should consult documentation for commands like cat, od, iconv, or text processing tools.

UNDERSTANDING CHARACTERS AND ENCODING IN LINUX

Character encoding is crucial for proper text display and processing in Linux. Historically, ASCII was dominant, but today UTF-8 is the prevalent encoding, supporting a vast range of international characters.

Linux systems manage character handling through locale settings, configured via environment variables like LANG and LC_ALL. These settings dictate aspects like character set, collation rules, and numeric formatting.

Tools like iconv allow conversion between different character encodings, while text processing commands like grep, sed, and awk utilize character classes (e.g., [[:digit:]], [[:space:]]) within regular expressions to match specific types of characters, providing powerful text manipulation capabilities. Understanding these concepts is key to effective text processing on Linux.

SEE ALSO

cat(1), od(1), iconv(1), locale(1), grep(1), sed(1), awk(1), file(1)

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