fstrcmp - Online in the Cloud

PROGRAM:

NAME

fstrcmp - fuzzy comparison of strings

SYNOPSIS

fstrcmp [ -p ] first‐string second‐string
fstrcmp -w first‐string second‐string
fstrcmp -a first‐file second‐file
fstrcmp -s needle haystack...
fstrcmp --version

DESCRIPTION

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 identical.

You may need to quote the string to insulate them from the shell.

OPTIONS

The fstrcmp command understands the following options:

-a

--files-as-bytes
This option is used to compare two files as arrays of bytes. See fmemcmp(3) for
more information.

-p

--pair This option is used to compare two strings as arrays of bytes. This is the
default. See fstrcmp(3) for more information.

-s

--select
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.

-V

--version
This option may be used to print the version of the fstrcmp command, and then
exit.

-w

--wide-pair
This option is used to compare two multi‐byte character strings. See fstrcoll(3)
for more information.

EXIT STATUS

The fstrcmp command exits with status 1 on any error. The fstrcmp command only exits with
status 0 if there are no errors.

EXAMPLE

The fstrcmp --select option may be used in a shell script to improve error messages.
case "$action" in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
*)
echo "$0: action \"$action\" unknown" 1>&2
guess=`fstrcmp --select "$action" stop start restart`
if [ "$guess" ]
then
echo "$0: did you mean \"$guess\" instead?" 1>&2
fi
exit 1
;;
esac
Thus, the error message frequently suggests the correct action in the face of simple
finger problems on the command line.

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