preparation for verbose output of shell commands (called by function exe())

seqs/tvheadend.sh

@@ -8,14 +8,14 @@ step_1() {
   local sourceList="/etc/apt/sources.list.d/tvheadend.list"
   local sourceEntry="deb https://apt.tvheadend.org/stable raspbian-stretch main"
 
-  apt update
+  exe apt update
   saveReturn $?
-  apt install coreutils wget apt-transport-https ca-certificates
+  exe apt install coreutils wget apt-transport-https ca-certificates
   saveReturn $?
   endReturn
 
   echo -n "Downloading tvheadend repository key ... "
-  wget -qO- https://doozer.io/keys/tvheadend/tvheadend/pgp | sudo apt-key add -
+  exe wget -qO- https://doozer.io/keys/tvheadend/tvheadend/pgp | sudo apt-key add -
   saveReturn $?
   endReturn
 
@@ -24,9 +24,9 @@ step_1() {
 
 step_2_info() { echo "Install/Upate $toolName"; }
 step_2() {
-  apt update
+  exe apt update
   saveReturn $?
-  apt install tvheadend
+  exe apt install tvheadend
   saveReturn $?
   endReturn
 
@@ -39,14 +39,14 @@ step_99() {
   local sourceList="/etc/apt/sources.list.d/tvheadend.list"
   local sourceEntry="deb https://dl.bintray.com/mpmc/deb raspbianstretch release-4.2"
 
-  apt update && apt install dirmngr
-  apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 379CE192D401AB61
+  exe apt update && apt install dirmngr
+  exe apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 379CE192D401AB61
   if [ -f "$sourceList" ] ; then
     echo "Skipping creating of $sourceList; Already exists"
     return
   fi
   echo "$sourceEntry" > "$sourceList"
-  apt update
+  exe apt update
   saveReturn $?
   endReturn
 }