refine debug script

debug.sh

@@ -9,10 +9,7 @@ container: container id or container name
 
 while getopts ':h' option; do
     case "$option" in
-        h)
-            echo "$usage"
-            exit 0
-            ;;
+        *) echo "$usage" ;exit 0;;
     esac
 done
 
@@ -20,17 +17,17 @@ container=$1
 
 if [[ -z "$container" ]]; then
     echo -n "Container name (leave empty if stopped):"
-    read container < /dev/tty
+    read -r container < /dev/tty
 fi
 
 echo "Collecting, please wait..."
 
-tmp_dir=`mktemp -d`
+tmp_dir=$(mktemp -d -t redroid-debug.XXXXXXXX)
 #echo "creating tmp dir: $tmp_dir"
 
-cd $tmp_dir
+cd "$tmp_dir" || exit 1
 
-{ cp /boot/config-`uname -r` ./ || zcat /proc/config.gz > config-`uname -r`; } &> /dev/null
+{ cp /boot/config-"$(uname -r)" ./ || zcat /proc/config.gz > config-"$(uname -r)"; } &> /dev/null
 
 { grep binder /proc/filesystems; grep ashmem /proc/misc; } > drivers.txt
 
@@ -51,14 +48,14 @@ dmesg -T > dmesg.txt
 docker info &> docker-info.txt
 
 if [[ -n $container ]]; then
-    docker exec $container ps -A &> ps.txt
-    docker exec $container logcat -d &> logcat.txt
-    docker exec $container logcat -d -b crash &> crash.txt
-    docker exec $container /vendor/bin/vainfo -a &> vainfo.txt
-    docker exec $container getprop &> getprop.txt
-    docker exec $container dumpsys &> dumpsys.txt
+    docker exec "$container" ps -A &> ps.txt
+    docker exec "$container" logcat -d &> logcat.txt
+    docker exec "$container" logcat -d -b crash &> crash.txt
+    docker exec "$container" /vendor/bin/vainfo -a &> vainfo.txt
+    docker exec "$container" getprop &> getprop.txt
+    docker exec "$container" dumpsys &> dumpsys.txt
 
-<<'EOF' >network.txt  docker exec -i $container sh
+<<'EOF' >network.txt  docker exec -i "$container" sh
     echo "************** ip a"
     ip a
     echo "************** ip rule"
@@ -66,12 +63,12 @@ if [[ -n $container ]]; then
     echo;echo "************** ip r show table eth0"
     ip r list table eth0
 EOF
-    docker container inspect $container &> container-inspect.txt
-    docker image inspect `docker container inspect -f '{{.Config.Image}}' $container` &> image-inspect.txt
+    docker container inspect "$container" &> container-inspect.txt
+    docker image inspect "$(docker container inspect -f '{{.Config.Image}}' "$container")" &> image-inspect.txt
 fi
 
 tmp_tar=${tmp_dir}.tgz
-tar czf $tmp_tar $tmp_dir &> /dev/null
+tar czf "$tmp_tar" "$tmp_dir" &> /dev/null
 
 echo
 echo "==================================="