Default to ns mode (not fakeroot) for bin wrappers and add sudoj command

This is related to #292

README.md

@@ -110,25 +110,34 @@ used, see the [Usage](#usage) section below.
 Run JuNest installed programs directly from host OS
 ---------------------------------------
 
-Installed programs can be accessible directly from host without
-entering directly into a JuNest session (no need to call `junest` command).
+Program installed within JuNest can be accessible directly from host machine
+without entering directly into a JuNest session
+(no need to call `junest` command first).
 For instance, supposing the host OS is an Ubuntu distro you can directly
 run `pacman` by simply updating the `PATH` variable:
 
 ```sh
 export PATH="$PATH:~/.junest/usr/bin_wrappers"
-pacman -S htop
+sudoj pacman -S htop
 htop
 ```
 
-By default the wrappers use `"ns --fakeroot"` but you can change it via `JUNEST_ARGS` environment variable.
+By default the wrappers use `ns` mode. To use the `ns --fakeroot` you can use the convenient command helper `sudoj`.
+For more control on backend mode you can use the `JUNEST_ARGS` environment variable.
 For instance, if you want to run `iftop` with real root privileges:
 
 ```
-pacman -S iftop
+sudoj pacman -S iftop
 sudo JUNEST_ARGS="groot" iftop
 ```
 
+Bin wrappers can be always recreated (e.g. in case for some reasons they get
+corrupted) with:
+
+```
+junest create-bin-wrappers -f
+```
+
 Install packages from AUR
 -------------------------
 

bin/sudoj

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+#
+# This file is part of JuNest (https://github.com/fsquillace/junest).
+#
+
+export PATH="${PATH}:${JUNEST_HOME}/usr/bin_wrappers"
+
+JUNEST_ARGS="ns --fakeroot" "$@"

lib/checks/check_all.sh

@@ -24,3 +24,4 @@ sudo -E "$JUNEST_SCRIPT" groot -- "$CHECK_SCRIPT" --run-root-tests --skip-aur-te
 # Test the wrappers work
 "$JUNEST_SCRIPT" create-bin-wrappers --force
 "$JUNEST_HOME"/usr/bin_wrappers/pacman --help
+"${JUNEST_BASE}/bin/sudoj" pacman -Syu

lib/core/wrappers.sh

@@ -36,7 +36,7 @@ function create_wrappers() {
         cat <<EOF > "${JUNEST_HOME}/usr/bin_wrappers/${file}"
 #!/usr/bin/env bash
 
-JUNEST_ARGS=\${JUNEST_ARGS:-ns --fakeroot}
+JUNEST_ARGS=\${JUNEST_ARGS:-ns}
 
 eval junest "\${JUNEST_ARGS}" -- ${file} "\$(printf "%q" "\$@")"
 EOF