robsears · September 22, 2013 06:33 · Sep 22, 2013
diff --git a/find_all_modules.sh b/find_all_modules.sh
@@ -0,0 +1,49 @@
+#!/bin/bash
+# This code should not be run as `sh find_all_modules.sh`, as some distros
+# link sh to dash, which is POSIX-compliant and doesn't do arrays.
+# Adapted from Linux Kernel in a Nutshell: http://www.kroah.com/lkn/
+# By Rob Sears, Sept 22, 2013.
+
+# Get a newline-separated list of modules in use:
+MODLIST=`for i in $(find /sys/ -name modalias -exec cat {} \; 2>/dev/null); do	/sbin/modprobe --config /dev/null --show-depends $i 2> /dev/null;done | rev | cut -f 1 -d '/' | rev | sort -u`
+
+# Convert the newline-separated list to an array:
+IFS=$'\n' read -d '' -r -a MODULES <<< "${MODLIST}"
+
+# Iterate over the array and print out details:
+for i in "${MODULES[@]}"
+do
+	# Get the module name (turn "module.ko" to "module"):
+	MOD=`echo "${i}" | sed -e "s/\([0-9a-zA-Z]\)\.ko/\1/"`
+
+	# Get the module description:
+	DESC=`modinfo $MOD | grep description | sed -r "s/[\ ]+{2,}/\ /g; " | sed -e "s/^description\: \([0-9a-zA-Z]\)/\1/"`
+
+	# Get the module's dependancies:
+	DEPS=`modinfo $MOD | grep depends | sed -r "s/[\ ]+{2,}/\ /g; " | sed -e "s/^depends\: \([0-9a-zA-Z]\)/\1/"`
+
+	# Determine whether to print a description:
+	if [ -z "${DESC}" ]; then
+		DESCRIPTION=""
+	else
+		DESCRIPTION="${DESC} "
+	fi
+
+	# Determine whether to print a dependancy list:
+	if [[ "${DEPS}" =~ "depends:" ]]; then
+		DEPENDANCIES=""
+	else
+		DEPENDANCIES="Depends on ${DEPS}"
+	fi
+
+	# Generate the notes to display:
+	NOTES="${DESCRIPTION}${DEPENDANCIES}"
+	if [ -z "${NOTES}" ]; then
+		MESSAGE="$i: No information"
+	else
+		MESSAGE="$i (${NOTES})"
+	fi
+
+	# Print the module name, description and dependancies:
+	echo "${MESSAGE}"
+done
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