pkg install, add link if package no have scripts

assets/var/gnu/7z.md

@@ -11,8 +11,71 @@ ln /pkg/gnu/7z/bin/7zz /pkg/gnu/7z/bin/7z
 ```
 
 ``` sh *** config ***
+cat > /pkg/gnu/7z/bin/unzip <<'EOF'
+#!/bin/bash
+
+TARGET_DIR=""
+QUIET=0
+TARBALL=""
+
+while [ $# -gt 0 ]; do
+    case "$1" in
+        -d)
+            TARGET_DIR="$2"
+            shift 2
+            ;;
+        -q)
+            QUIET=1
+            shift
+            ;;
+        -o)
+            shift
+            ;;
+        -t)
+            7z t "$2" >/dev/null 2>&1
+            exit $?
+            ;;
+        -l)
+            7z l "$2"
+            exit $?
+            ;;
+        -*)
+            shift
+            ;;
+        *)
+            TARBALL="$1"
+            shift
+            ;;
+    esac
+done
+
+if [ -z "$TARBALL" ]; then
+    echo "unzip wrapper: no archive specified" >&2
+    exit 1
+fi
+
+if [ -n "$TARGET_DIR" ]; then
+    mkdir -p "$TARGET_DIR"
+    if [ $QUIET -eq 1 ]; then
+        7z x -y -bso0 -bsp0 -o"$TARGET_DIR" "$TARBALL" >/dev/null 2>&1
+    else
+        7z x -y -o"$TARGET_DIR" "$TARBALL"
+    fi
+else
+    if [ $QUIET -eq 1 ]; then
+        7z x -y -bso0 -bsp0 "$TARBALL" >/dev/null 2>&1
+    else
+        7z x -y "$TARBALL"
+    fi
+fi
+
+exit $?
+EOF
+
+chmod +x /pkg/gnu/7z/bin/unzip
+```
+
 cat > /pkg/gnu/7z/bin/unzip <<EOF
 #!/bin/bash
 
 7z x "$@"
-```