Do not use tempfile

It is not needed anymore.

kvmstats

@@ -7,7 +7,7 @@ usage () {
     exit 1
 }
 
-for DEP in bc tempfile virsh
+for DEP in bc virsh
 do
     if [ -z "$(which $DEP)" ]
     then
@@ -48,8 +48,6 @@ done
 # since libvirt seems to store memoy in KiB, POW must be lowered by 1
 POW=$((POW / 1024))
 
-TMPFILE=$(tempfile -s kvmstats)
-
 for VM in $(virsh list --name --all)
 do
     CPU=$(virsh vcpucount --maximum --current "$VM")
@@ -60,12 +58,9 @@ do
           done | awk '/Physical:/ { size += $2 } END { print int(size / 1024 ^ 3) }')
     RUN=$(virsh domstate "$VM" | grep -q '^running$' && echo yes || echo no)
     echo "$VM" "$CPU" "$RAM" "$DSK" "$RUN"
-done >"$TMPFILE"
-
-(
+done | (
     echo vm vcpu ram disk running
-    cat "$TMPFILE"
-    awk '/yes$/ { vcpu += $2; ram += $3; disk += $4; running++ } END { print "TOTAL(running)", vcpu, ram, disk, running }' <"$TMPFILE"
+    awk '{ print } /yes$/ { print; vcpu += $2; ram += $3; disk += $4; running++ } END { print "TOTAL(running)", vcpu, ram, disk, running }'
     if [ "$SHOW_AVAIL" ]
     then
         AV_CPU=$(awk '/^processor/ { cpu++ } END { print cpu }' /proc/cpuinfo)
@@ -73,5 +68,3 @@ done >"$TMPFILE"
         echo AVAILABLE "$AV_CPU" "$AV_MEM"
     fi
 ) | column -t
-
-rm "$TMPFILE"