OnWorks favicon

aspell - Online in the Cloud

Run aspell in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command aspell that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



aspell - interactive spell checker


aspell [options] <command>


aspell is a utility program that connects to the Aspell library so that it can function as
an ispell -a replacement, as an independent spell checker, as a test utility to test out
Aspell library features, and as a utility for managing dictionaries used by the library.

The Aspell library contains an interface allowing other programs direct access to its
functions and therefore reducing the complex task of spell checking to simple library
calls. The default library does not contain dictionary word lists. To add language
dictionaries, please check your distro first for modified dictionaries, otherwise look
here for base language dictionaries <http://aspell.net>.

The following information describes the commands and options used by the Aspell Utility.

This manual page is maintained separately from the official documentation so it may be out
of date or incomplete. The official documentation is maintained as a Texinfo manual. See
the `aspell' entry in info for more complete documentation.


<command> is one of:

usage, -?
Send a brief Aspell Utility usage message to standard output. This is a short
summary listing more common spell-check commands and options.

help Send a detailed Aspell Utility help message to standard output. This is a complete
list showing all commands, options, filters and dictionaries.

version, -v
Print version number of Aspell Library and Utility to standard output.

check <file>, -c <file>
Spell-check a single file.

pipe, -a
Run Aspell in ispell -a compatibility mode.

list Produce a list of misspelled words from standard input.

[dump] config
Dump all current configuration options to standard output.

config <key>
Send the current value of <key> to standard output.

Output the soundslike equivalent of each word entered.

munch Generate possible root words and affixes from an input list of words.

expand [1-4]
Expands the affix flags of each affix compressed word entered.

clean [strict]
Cleans an input word list so that every line is a valid word.

munch-list [simple] [single|multi] [keep]
Reduce the size of a word list via affix compression.

conv <from> <to> [<norm-form>]
Converts <from> one encoding <to> another.

norm (<norm-map>|<from> <norm-map> <to>) [<norm-form>]
Perform Unicode normalization.

[dump] dicts|filters|modes
Lists available dictionaries, filters, or modes.

dump|create|merge master|personal|repl <wordlist>
dump, create, or merge a master, personal, or replacement word list.


The following options may be used to control which dictionaries to use and how they

--master=<name>, -d <name>
Base name of the dictionary to use. If this option is specified then Aspell will
either use this dictionary or die.

Location of the main dictionary word list.

--lang=<string>, -l <string>
Language to use. It follows the same format of the LANG environmental variable on
most systems. It consists of the two letter ISO 639 language code and an optional
two letter ISO 3166 country code after a dash or underscore. The default value is
based on the value of the LC_MESSAGES locale.

The preferred size of the dictionary word list. This consists of a two char digit
code describing the size of the list, with typical values of: 10=tiny, 20=really
small, 30=small, 40=med-small, 50=med, 60=med-large, 70=large, 80=huge, 90=insane.

Any extra information to distinguish this variety of dictionary from other
dictionaries which may have the same lang and size.

Please use the variety option since it replaces jargon as a better choice. jargon
will be removed in the future.

--word-list-path=<list of directories>
Search path for word list information files.

--personal=<file>, -p <file>
Personal word list file name.

Replacements list file name.

Extra dictionaries to use.

This option is not yet implemented.


These options control the behavior of Aspell when checking documents.

--ignore=<integer>, -W <integer>
Ignore words <= <integer> characters in length.

--ignore-case, --dont-ignore-case
Ignore case when checking words.

--ignore-repl, --dont-ignore-repl
Ignore commands to store replacement pairs.

--save-repl, --dont-save-repl
Save the replacement word list on save all.

Suggestion <mode> = ultra|fast|normal|bad-spellers


These options modify the behavior of the various filters.

--add-filter=<list>, --rem-filter=<list>
Add or remove a filter.

--add-filter-path=<paths>, --rem-filter-path=<paths>
Add or remove paths searched for filters.

--mode=<string>, -e, -H, -t, -n
Sets the filter mode. Mode is one of none, url, email, html, tex or nroff. The
alternative shortcut options are '-e' for email, '-H' for Html/Sgml, '-t' for Tex
or '-n' for Nroff.

encoding the document is expected to be in. The default depends on the current

--add-email-quote=<list>, --rem-email-quote=<list>
Add or Remove a list of email quote characters.

Number of chars that can appear before the quote char.

--add-html-check=<list>, --rem-html-check=<list>
Add or remove a list of HTML attributes to always check. For example, look inside
alt= tags.

--add-html-skip=<list>, --rem-html-skip=<list>
Add or remove a list of HTML attributes to always skip while spell checking.

--add-sgml-check=<list>, --rem-sgml-check=<list>
Add or remove a list of SGML attributes to always check for spelling.

--add-sgml-skip=<list>, --rem-sgml-skip=<list>
Add or remove a list of SGML attributes to always skip while spell checking.

SGML file extensions.

--tex-check-comments, --dont-tex-check-comments
Check TeX comments.

--add-tex-command=<list>, --rem-tex-command=<list>
Add or Remove a list of TeX commands.


These may be used to control the behavior of run-together words.

--run-together, --dont-run-together, -C, -B
Consider run-together words valid.

Maximum number of words that can be strung together.

Minimal length of interior words.


Miscellaneous options that don't fall under any other category.

--conf=<file name>
Main configuration file. This file overrides Aspell's global defaults.

Location of main configuration file.

Location of language data files.

Use this keyboard layout for suggesting possible words. These spelling errors
happen if a user accidently presses a key next to the intended correct key.

Alternative location of language data files. This directory is searched before

Directory Location for personal wordlist files.

--per-conf=<file name>
Personal configuration file. This file overrides options found in the global
config file.


These options are part of the aspell Utility and work independently of the library.

--backup, --dont-backup, -b, -x
The aspell utility creates a backup file by making a copy and appending .bak to
file name. This only applies when the command is check <file> and the backup file
is only created if any spelling modifications take place.

--byte-offsets, --dont-byte-offsets
Use byte offsets instead of character offsets.

--guess, --dont-guess, -m, -P
Create missing root/affix combinations not in the dictionary in pipe mode.

--keymapping=aspell, --keymapping=ispell
The keymapping to use, either aspell for the default mapping or ispell to use the
same mapping that the Ispell utility uses.

--reverse, --dont-reverse
Reverse the order of the suggestions list in pipe mode.

--suggest, --dont-suggest
Suggest possible replacements in pipe mode. If false, Aspell will simply report
the misspelling and make no attempt at suggestions or possible corrections.

--time, --dont-time
Time the load time and suggest a time in pipe mode.

In addition Aspell will try to make sense out of Ispell's command line options so that it
can function as a drop in replacement for Ispell. If Aspell is run without any command
line options it will display a brief help screen and quit.


Aspell can accept options via global or personal configuration files so that you do not
need to specify them each time at the command line. The default global configuration file
is /etc/aspell.conf or another file specified by option --conf and is checked first. The
default per user configuration file ~/.aspell.conf located in the $HOME directory (or
another file specified by option --per-conf) is checked next and overrides options set in
the global config file. Options specified at either the command line or via an
environmental variable override those specified by either configuration file.

Each line of the configuration file has the format:

option [value]

where option is any one of the standard library options above without the leading dashes.
For example the following line will set the default language to Swiss German:

lang de_CH

There may be any number of spaces between the option and the value, however it can only be
spaces, i.e. there is no '=' between the option name and the value. Comments may also be
included by preceding them with a '#' as anything from a '#' to a newline is ignored.
Blank lines are also allowed. The /etc/aspell.conf file is a good example of how to set
these options and the Aspell Manual has more detailed info.

Use aspell online using onworks.net services

Free Servers & Workstations

Download Windows & Linux apps

Linux commands