fstrcmp - fuzzy comparison of strings
fstrcmp -w first‐string second‐string
fstrcmp -a first‐file second‐file
fstrcmp -s needle haystack
The fstrcmp command is used to make fuzzy comparisons between strings. The
“edit distance” between the strings is printed, with 0.0 meaning
the strings are utterly un‐alike, and 1.0 meaning the strings are
You may need to quote the string to insulate them from the shell.
The fstrcmp command understands the following options:
- This option is used to compare two files as arrays of
bytes. See fmemcmp(3) for more information.
- This option is used to compare two strings as arrays of
bytes. This is the default. See fstrcmp(3) for more
- This option is used to select the closest needle
from the provided haystack alternatives. The most similar (single)
choice is printed. If none are particularly similar, nothing is printed.
See fstrcmp(3) for more information. See below for example.
- This option may be used to print the version of the fstrcmp
command, and then exit.
- This option is used to compare two multi‐byte
character strings. See fstrcoll(3) for more information.
The fstrcmp command exits with status 1 on any error. The fstrcmp command only
exits with status 0 if there are no errors.
The fstrcmp --select
option may be used in a shell script to improve
case "$action" in
echo "$0: action \"$action\" unknown" 1>&2
guess=`fstrcmp --select "$action" stop start restart`
if [ "$guess" ]
echo "$0: did you mean \"$guess\" instead?" 1>&2
Thus, the error message frequently suggests the correct action in the face of
simple finger problems on the command line.
- fuzzy comparison of strings
- fuzzy comparison of two multi‐byte character
- fuzzy comparison of strings, integer variation
fstrcmp version 0.7
Copyright (C) 2009 Peter Miller
Peter Miller <firstname.lastname@example.org>
The comparison code is derived from the fuzzy comparison functions in GNU
Gettext 0.17. The GNU Gettext comparison functions were, in turn, derived from
GNU Diff 2.7.
Copyright (C) 1988-2009 Free Software Foundation