diff --git a/filesystem/05-home-dir.post b/filesystem/05-home-dir.post
index 38578490..5d0bcab3 100644
--- a/filesystem/05-home-dir.post
+++ b/filesystem/05-home-dir.post
@@ -1,7 +1,7 @@
 maybe_create_home ()
 {
   # Set the user id
-  USER="$(id -un)"
+  USER="$(exec id -un)"
 
   # Default to removing the write permission for group and other
   #  (files normally created with mode 777 become 755; files created with
diff --git a/filesystem/06-windows-files.post b/filesystem/06-windows-files.post
index ff1ba8da..fbedb379 100644
--- a/filesystem/06-windows-files.post
+++ b/filesystem/06-windows-files.post
@@ -1,7 +1,7 @@
 maybe_create_winetc ()
 {
   local FILES="hosts protocols services networks"
-  local WINSYS32HOME="$(/usr/bin/cygpath -S -w)"
+  local WINSYS32HOME="$(exec /usr/bin/cygpath -S -w)"
   local WINETC="${WINSYS32HOME}\\drivers\\etc"
 
   if [ ! -d "${WINETC}" ]; then
@@ -16,7 +16,7 @@ maybe_create_winetc ()
     if [ ! -e "/etc/${mketc}" -a ! -L "/etc/${mketc}" ]
     then
       # Windows only uses the first 8 characters
-      local WFILE="${WINETC}\\$(expr substr "${mketc}" 1 8)"
+      local WFILE="${WINETC}\\$(exec expr substr "${mketc}" 1 8)"
       /usr/bin/cp -p -v "${WFILE}" "/etc/${mketc}"
     fi
   done
diff --git a/filesystem/PKGBUILD b/filesystem/PKGBUILD
index 10df9eed..4f52f8fc 100644
--- a/filesystem/PKGBUILD
+++ b/filesystem/PKGBUILD
@@ -4,8 +4,8 @@
 # Contributor: Alethea Rose <alethea@alethearose.com>
 
 pkgname=filesystem
-pkgver=2018.02
-pkgrel=2
+pkgver=2018.03
+pkgrel=1
 pkgdesc='Base filesystem'
 arch=('i686' 'x86_64')
 license=('BSD')
@@ -62,17 +62,17 @@ sha256sums=('6d651f6b0b2d173961a3fa21acd9d44c783ed9cd73a031687698c8b9ed1f6dee'
             'a32c0b84b65364ccce27f9db3c054b83d842721c87d4821f757594575319d77a'
             '3c1da9bf6ff791c32f17e49db0047b3c9cbaacd44d6d0b92696cdeacebf8f947'
             '91f1f918cf13deab0124082086e990786113b0e710dbda4678d8fc14905ad94d'
-            '4973827f59fed69911bc0b3e4ad7f9ee6aac0ee120b38ded0a46a7302044dd36'
-            '0a3a3b131ace34f11f428118dfe81b34da148e29b6bea3b027d79bebd47141a7'
-            '020d0619a6af9a4d6e1068cb77f2789bcf470380426214e90177f5596d651835'
+            '68ad4e1f55c1fe092905808f825efc68df7a8d787abce4d02a3bb3c2d3daf119'
+            '67e9285cdadb484ccf7e189f0872d2282171de2da4796e63471471ca37cf01c5'
+            '7a844eb4cb915b91c3d4a5ec6bb4ba9253b7446aac698fe7689855341b381eaa'
             '756df34c5b28478a81331785de0f56438bb652cf5f29029a9db2d83281361340'
             '2087410bf7ead6fa586628ea7fc97c53f5ea3ce16d1ee91ecc15ccc18ab53094'
             'f63241cc56aa7b7ec6962d19991d211b4e1641b78ba5226835118ab493830a8b'
             'e96c1f54ffff792e738aa032815c82c30821b0683806e5ed0ba2a759db2fd494'
             '95105051d31ecbe4ace262a4496ec1055bdd14d61b7d475a771b56fe15f8ccd9'
             'd7b7eb4cd9e1f9bc227b009cdcacf700f5523ccc109fbd3c1c0331726d314c9e'
-            '351fc143ab0510f273af5f238d75d5452bdc250735ac83c53f4999a0fd6c0f4f'
-            '9aa47f4d8b781906136d39d10fa9c007e9ff7433624213c7db7a03e906e804ba'
+            '0c479c8094a68c65a47066036659ae650da2751e307f52e4c78b86a0b2f9be2f'
+            'fedaf4d9ae282f6c1698d04d280dd48c8d3247321a5cb5e309e61e2c655102c6'
             'fd6eb255b5a35e62a34a54bf39598134296a11bddd3e6a30edd008cbe136b9f3'
             'ad8533809ea2b1bce0a41b3a0a24dbc7a9f58b992ceb40cc9f862b1978032790'
             'b9af554432605fe4027fbc231170e01edb5bcbb958bfd0922609f1901a2dd555'
diff --git a/filesystem/profile b/filesystem/profile
index e9400903..afaa1cb1 100644
--- a/filesystem/profile
+++ b/filesystem/profile
@@ -40,7 +40,7 @@ case "${MSYS2_PATH_TYPE:-minimal}" in
   *)
     # Do not inherit any path configuration but configure a default Windows path
     # suitable for normal usage with minimal external interference.
-    WIN_ROOT="$(PATH=${MSYS2_PATH} cygpath -Wu)"
+    WIN_ROOT="$(PATH=${MSYS2_PATH} exec cygpath -Wu)"
     ORIGINAL_PATH="${WIN_ROOT}/System32:${WIN_ROOT}:${WIN_ROOT}/System32/Wbem:${WIN_ROOT}/System32/WindowsPowerShell/v1.0/"
 esac
 
@@ -84,8 +84,8 @@ SYSCONFDIR="${SYSCONFDIR:=/etc}"
 ORIGINAL_TMP="${ORIGINAL_TMP:-${TMP}}"
 ORIGINAL_TEMP="${ORIGINAL_TEMP:-${TEMP}}"
 unset TMP TEMP
-tmp=$(cygpath -w "$ORIGINAL_TMP" 2> /dev/null)
-temp=$(cygpath -w "$ORIGINAL_TEMP" 2> /dev/null)
+tmp=$(exec cygpath -w "$ORIGINAL_TMP" 2> /dev/null)
+temp=$(exec cygpath -w "$ORIGINAL_TEMP" 2> /dev/null)
 TMP="/tmp"
 TEMP="/tmp"
 
@@ -125,23 +125,23 @@ for postinst in $(export LC_COLLATE=C; echo /etc/post-install/*.post); do
 done
 
 if [ ! "x${BASH_VERSION}" = "x" ]; then
-  HOSTNAME="$(/usr/bin/hostname)"
+  HOSTNAME="$(exec /usr/bin/hostname)"
   profile_d sh
   [ -f "/etc/bash.bashrc" ] && . "/etc/bash.bashrc"
 elif [ ! "x${KSH_VERSION}" = "x" ]; then
-  typeset -l HOSTNAME="$(/usr/bin/hostname)"
+  typeset -l HOSTNAME="$(exec /usr/bin/hostname)"
   profile_d sh
   PS1=$(print '\033]0;${PWD}\n\033[32m${USER}@${HOSTNAME} \033[33m${PWD/${HOME}/~}\033[0m\n$ ')
 elif [ ! "x${ZSH_VERSION}" = "x" ]; then
-  HOSTNAME="$(/usr/bin/hostname)"
+  HOSTNAME="$(exec /usr/bin/hostname)"
   profile_d sh
   profile_d zsh
   PS1='(%n@%m)[%h] %~ %% '
 elif [ ! "x${POSH_VERSION}" = "x" ]; then
-  HOSTNAME="$(/usr/bin/hostname)"
+  HOSTNAME="$(exec /usr/bin/hostname)"
   PS1="$ "
 else 
-  HOSTNAME="$(/usr/bin/hostname)"
+  HOSTNAME="$(exec /usr/bin/hostname)"
   profile_d sh
   PS1="$ "
 fi
diff --git a/filesystem/profile.lang.sh b/filesystem/profile.lang.sh
index 0e2b763d..5fdd6328 100644
--- a/filesystem/profile.lang.sh
+++ b/filesystem/profile.lang.sh
@@ -16,4 +16,4 @@
 # System-wide lang.sh file
 
 # if no locale variable is set, indicate terminal charset via LANG
-test -z "${LC_ALL:-${LC_CTYPE:-$LANG}}" && export LANG=$(/usr/bin/locale -uU)
+test -z "${LC_ALL:-${LC_CTYPE:-$LANG}}" && export LANG=$(exec /usr/bin/locale -uU)
diff --git a/filesystem/profile.tzset.sh b/filesystem/profile.tzset.sh
index 7c177675..ba60e6d8 100644
--- a/filesystem/profile.tzset.sh
+++ b/filesystem/profile.tzset.sh
@@ -19,4 +19,4 @@
 #mapping, rather than the locale setting.  Only on Windows 2000 which
 #doesn't know about the user's geographical location, or if fetching
 #the geographical location fails, it falls back to the user's locale.
-test -z "$TZ" && export TZ=$(/usr/bin/tzset)
+test -z "$TZ" && export TZ=$(exec /usr/bin/tzset)