diff --git a/gaboshlib/g_calc.sh b/gaboshlib/g_calc.sh
index d21ac13..d3db25d 100644
--- a/gaboshlib/g_calc.sh
+++ b/gaboshlib/g_calc.sh
@@ -2,9 +2,19 @@ function g_calc {
 
   unset g_calc_result
 
+  local g_calc_jobs g_rnd 
+  local g_bc_running=true
+  mapfile -t g_calc_jobs < <(jobs -r)
+  g_calc_jobs_v=${g_calc_jobs[*]}
+  [[ $g_calc_jobs_v =~ bc  ]] || unset g_bc_running
+
   # Use bc in backround for multiple bc's running much faster
   if [ -z "${g_bc_running}" ]
   then
+
+    g_kill_all_background_jobs bc-ql
+    g_kill_all_background_jobs sed
+
     g_rnd=$$
     mkdir -p ${g_tmp}/${g_rnd}
     [ -p ${g_tmp}/${g_rnd}/bc-in ] || mkfifo ${g_tmp}/${g_rnd}/bc-in
@@ -33,7 +43,7 @@ function g_calc {
     ( exec 4<&- ) 2>/dev/null
     ( exec 5<&- ) 2>/dev/null
     ( exec 6<&- ) 2>/dev/null
-    unset g_bc_running
+    #unset g_bc_running
     return 1
   fi 
 
@@ -47,7 +57,7 @@ function g_calc {
     ( exec 4<&- ) 2>/dev/null
     ( exec 5<&- ) 2>/dev/null
     ( exec 6<&- ) 2>/dev/null
-    unset g_bc_running
+    #unset g_bc_running
     return 1
   fi
 
diff --git a/gaboshlib/g_kill_all_background_jobs.sh b/gaboshlib/g_kill_all_background_jobs.sh
index 0e219c7..925b699 100644
--- a/gaboshlib/g_kill_all_background_jobs.sh
+++ b/gaboshlib/g_kill_all_background_jobs.sh
@@ -1,6 +1,24 @@
 function g_kill_all_background_jobs {
-  local g_pids
-  readarray g_pids < <(jobs -p)
-  [ -n "${g_pids[0]}" ] && kill -9 ${g_pids[*]} >/dev/null 2>&1
+  [ -z "$1" ] &&
+  sleep 0.1
+  g_array "$(jobs -p)" g_pids
+  if [ -n "${g_pids[0]}" ]
+  then
+    if [ -z "$1" ]
+    then
+      kill -9 ${g_pids[*]} >/dev/null 2>&1
+    else
+      local g_cmdline=$1
+      local g_proc
+      local g_pid
+      for g_pid in "${g_pids[@]}"
+      do
+        echo $g_pid
+        readarray g_proc < "/proc/$g_pid/cmdline"
+        [ "$g_proc" = "$g_cmdline" ] && kill -9 $g_pid >/dev/null 2>&1
+      done
+    fi
+  fi
   return 0
 }
+