diff --git a/regression_scripts/build_pmesdr.sh b/regression_scripts/build_pmesdr.sh
index d4539945..38733d08 100755
--- a/regression_scripts/build_pmesdr.sh
+++ b/regression_scripts/build_pmesdr.sh
@@ -8,11 +8,15 @@
 # This script requires the name of a conda env to use to run the unit tests for CETB
 # comparison utilities.
 
+# If any simple step or pipeline fails, this script will fail
+set -eo pipefail
+
 error_exit() {
     # Use for fatal program error
     # Argument:
     #   optional string containing descriptive error message
     #   if no error message, prints "Unknown Error"
+    # Assumes caller has done set_pmesdr_environment.sh
 
     echo "build_pmesdr.sh: ERROR: ${1:-"Unknown Error"}" 1>&2
     return -1
@@ -29,5 +33,3 @@ cd ${PMESDR_TOP_DIR}/python
 source activate $condaenv
 nosetests test_cetb_utilities.py || error_exit "unit tests failed"
 
-# End of example job shell script
-# 
diff --git a/regression_scripts/git_pull.sh b/regression_scripts/git_pull.sh
index 73dbe4c4..46810329 100755
--- a/regression_scripts/git_pull.sh
+++ b/regression_scripts/git_pull.sh
@@ -1,4 +1,6 @@
 #!/bin/bash -l
+# If any simple step or pipeline fails, this script will fail
+set -eo pipefail
 
 PROGNAME=$(basename $0)
 
@@ -7,14 +9,14 @@ error_exit() {
     # Argument:
     #   optional string containing descriptive error message
     #   if no error message, prints "Unknown Error"
+    # Assumes user has done set_pmesdr_environment.sh
 
     echo "${PROGNAME}: ERROR: ${1:-"Unknown Error"}" 1>&2
-    exit -1
+    return -1
 }
 
 printf "%s: On %s, fetching latest software changes...\n" ${PROGNAME} $(hostname)
 
-source /projects/$USER/PMESDR_regression/src/prod/set_pmesdr_environment.sh
 cd $PMESDR_TOP_DIR || error_exit "$LINENO: Error changing to PMESDR_TOP_DIR."
 git pull || error_exit "$LINENO: Error on git pull."
 git status
diff --git a/regression_scripts/pull_build_and_run_regression.sh b/regression_scripts/pull_build_and_run_regression.sh
new file mode 100755
index 00000000..5d89def8
--- /dev/null
+++ b/regression_scripts/pull_build_and_run_regression.sh
@@ -0,0 +1,33 @@
+#!/bin/bash -l
+#
+# Re-builds a fresh copy of the system at PMESDR_TOP_DIR, runs unit tests and
+# either quick or daily regression
+#
+# Assumes the user has set the bash environment with set_pmesdr_environment.sh
+#
+
+# If any simple step or pipeline fails, this script will fail
+# thanks to this page for this tip:
+# https://stackoverflow.com/questions/821396/aborting-a-shell-script-if-any-command-returns-a-non-zero-value
+set -eo pipefail
+
+error_exit() {
+    # Use for fatal program error
+    # Argument:
+    #   optional string containing descriptive error message
+    #   if no error message, prints "Unknown Error"
+
+    echo "pull_build_and_run_regression.sh: ERROR: ${1:-"Unknown Error"}" 1>&2
+    return 1
+}
+
+REGRESSIONTYPE=$1
+
+source ${PMESDR_TOP_DIR}/regression_scripts/git_pull.sh || \
+    error_exit "failed to git pull from remote"
+source ${PMESDR_TOP_DIR}/regression_scripts/build_pmesdr.sh ${PMESDR_CONDAENV} || \
+    error_exit "failed to build system"
+source ${PMESDR_TOP_DIR}/regression_scripts/run_regression.sh \
+       ${REGRESSIONTYPE} ${PMESDR_CONDAENV} || \
+    error_exit "failed to run regression"
+
diff --git a/regression_scripts/run_regression.sh b/regression_scripts/run_regression.sh
index 3c311357..b53e38fc 100755
--- a/regression_scripts/run_regression.sh
+++ b/regression_scripts/run_regression.sh
@@ -9,7 +9,11 @@
 #
 # It is assumed that the caller has set the system location to
 # $PMESDR_TOP_DIR
-# 
+#
+
+# If any simple step or pipeline fails, this script will fail
+set -eo pipefail
+
 regressiontype=$1
 condaenv=$2
 
@@ -42,7 +46,6 @@ echo "`basename $0`: Regression type is $regressiontype"
 echo "`basename $0`: Conda env is       $condaenv"
 echo "`basename $0`: Make target is     $maketarget"
 
-source ${PMESDR_TOP_DIR}/src/prod/set_pmesdr_environment.sh
 eval "$(conda shell.bash hook)"
 conda activate ${condaenv}
 date
diff --git a/src/prod/Makefile b/src/prod/Makefile
index afe13c96..76454732 100644
--- a/src/prod/Makefile
+++ b/src/prod/Makefile
@@ -23,6 +23,13 @@ BINDIR = $(TOPDIR)/bin
 #
 SHELL = /bin/sh
 
+# Note that the extra activate is needed to ensure that the
+# activate floats env to the front of PATH
+# Thanks to this web site for the tip on how to use conda envs
+# from a makefile:
+# https://blog.ianpreston.ca/posts/2020-05-13-conda_envs.html
+CONDA_ACTIVATE=source $$(conda info --base)/etc/profile.d/conda.sh ; conda activate ; conda activate
+
 #
 #	C compiler options, debug or optimization settings
 #
@@ -90,9 +97,13 @@ regression-setup:
 
 conda-env:
 	conda create -y -n $(CONDAENV) gsx; \
-	conda activate $(CONDAENV); \
+	$(CONDA_ACTIVATE) $(CONDAENV); \
 	pip install pynose
 
+clean-conda:
+	$(CONDA_ACTIVATE) base; \
+	conda remove -n $(CONDAENV) --all
+
 unit-test:
 	${PMESDR_TOP_DIR}/regression_scripts/build_pmesdr.sh $(CONDAENV)