added find_hardlinks.sh

Author: HariSekhon

bin/find_hardlinks.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+#  vim:ts=4:sts=4:sw=4:et
+#
+#  Author: Hari Sekhon
+#  Date: 2024-02-28 01:16:44 +0000 (Wed, 28 Feb 2024)
+#
+#  https///github.com/HariSekhon/DevOps-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 "${DEBUG:-}" ] && set -x
+srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# shellcheck disable=SC1090,SC1091
+. "$srcdir/lib/utils.sh"
+
+# shellcheck disable=SC2034,SC2154
+usage_description="
+Finds all hardlinks to a given file by searching the mount point for the same inode number of a file
+"
+
+# used by usage() in lib/utils.sh
+# shellcheck disable=SC2034
+usage_args="<filename>"
+
+help_usage "$@"
+
+num_args 1 "$@"
+
+filename="$1"
+
+inode_number="$(stat -f "%i" "$filename")"
+
+mount_point="$(df "$filename" | awk '{print $NF}' | tail -n 1)"
+
+find "$mount_point" -xdev -inum "$inode_number" -print