You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
1.3 KiB
Bash
50 lines
1.3 KiB
Bash
#!/usr/bin/env bash
|
|
# vim:ts=4:sts=4:sw=4:et
|
|
#
|
|
# Author: Hari Sekhon
|
|
# Date: 2021-12-30 12:38:43 +0000 (Thu, 30 Dec 2021)
|
|
#
|
|
# https://github.com/HariSekhon/bash-tools
|
|
#
|
|
# License: see accompanying Hari Sekhon LICENSE file
|
|
#
|
|
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
|
|
#
|
|
# https://www.linkedin.com/in/HariSekhon
|
|
#
|
|
|
|
set -euo pipefail
|
|
[ -n "${DEBUG:-}" ] && set -x
|
|
srcdir="$(dirname "${BASH_SOURCE[0]}")"
|
|
|
|
# shellcheck disable=SC1090
|
|
. "$srcdir/lib/utils.sh"
|
|
|
|
# shellcheck disable=SC2034,SC2154
|
|
usage_description="
|
|
Prints a list of unique characters in a string
|
|
|
|
Useful to check large strings like \$PATH for characters that may be causing a regex match failure
|
|
|
|
Works like a standard unix filter program - string is read from a file argument or passed via stdin
|
|
"
|
|
|
|
# used by usage() in lib/utils.sh
|
|
# shellcheck disable=SC2034
|
|
usage_args="[<file>]"
|
|
|
|
help_usage "$@"
|
|
|
|
# need GNU switches
|
|
if is_mac; then
|
|
od(){
|
|
command god "$@"
|
|
}
|
|
fi
|
|
|
|
# -c printable characters or backslash escapes
|
|
# -v don't suppress duplicates with a *, we will post process them with sort
|
|
# -w1 only output 1 char per line so we can post process with sort, can be no space between the -w and 1 otherwise it'll try to read the 1 as a file argument
|
|
od -cv -A none -w1 "$@" |
|
|
sort -bu
|