diff --git a/regressiontest.good b/regressiontest.good
new file mode 100644
index 0000000..567eec8
--- /dev/null
+++ b/regressiontest.good
@@ -0,0 +1,49 @@
+Test basic use
+Test decompression in read-only dir
+   1000    1000    3893
+this should be silent
+man page for lrz should exist
+0
+compress stdin to stdout
+Respect $TMPDIR
+   1000    1000    3893
+Decompress in read only dir
+   1000    1000    3893
+Test -cd
+   1000    1000    3893
+Test -cfd should not remove testfile.lrz
+   1000    1000    3893
+testfile.lrz
+Test -1c
+   1002    1002    3975
+Test -r
+t10.lrz
+t1.lrz
+t2.lrz
+t3.lrz
+t4.lrz
+t5.lrz
+t6.lrz
+t7.lrz
+t8.lrz
+t9.lrz
+Test tar compatibility
+t/
+t/t8
+t/t7
+t/t3
+t/t5
+t/t2
+t/t6
+t/t10
+t/t4
+t/t9
+t/t1
+11
+test compress of 1 GB data with parallel --pipe --compress
+1073741824
+test compress of 1 GB with sort --compress-program
+1073741825
+test should not lrz -dc removes file
+OK
+testfile.lrz
diff --git a/regressiontest.sh b/regressiontest.sh
new file mode 100644
index 0000000..fd92609
--- /dev/null
+++ b/regressiontest.sh
@@ -0,0 +1,119 @@
+#!/bin/bash
+
+# Regression test.
+#
+# Copyright (C) 2016
+# Ole Tange and Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>
+# or write to the Free Software Foundation, Inc., 51 Franklin St,
+# Fifth Floor, Boston, MA 02110-1301 USA
+
+bash > regressiontest.out 2>&1  <<'_EOS'
+  rm -f testfile.lrz
+  seq 1000 > testfile
+  
+  echo 'Test basic use'
+    lrz testfile
+  
+  echo 'Test decompression in read-only dir'
+    mkdir -p ro
+    cp testfile.lrz ro
+    chmod 500 ro
+    cd ro
+    lrz -dc testfile.lrz | wc
+    cd ..
+  
+  echo 'this should be silent'
+    lrz -d testfile.lrz
+  
+  echo 'man page for lrz should exist'
+    man lrz >/dev/null
+    echo $?
+  
+  echo 'compress stdin to stdout'
+    cat testfile | lrz | cat > testfile.lrz
+  
+  echo 'Respect $TMPDIR'
+    mkdir -p t
+    chmod 111 t
+    cd t
+    TMPDIR=.. lrz -d < ../testfile.lrz | wc
+    cd ..
+    rm -rf t
+  
+  echo 'Decompress in read only dir'
+    mkdir -p t
+    chmod 111 t
+    cd t
+    lrz -d < ../testfile.lrz | wc
+    cd ..
+    rm -rf t
+  
+  echo 'Test -cd'
+    mkdir -p t
+    chmod 111 t
+    cd t
+    lrz -cd  ../testfile.lrz | wc
+    cd ..
+    rm -rf t
+
+  echo 'Test -cfd should not remove testfile.lrz'
+    mkdir -p t
+    chmod 111 t
+    cd t
+    lrz -cfd  ../testfile.lrz | wc
+    cd ..
+    rm -rf t
+    ls testfile.lrz
+
+  echo 'Test -1c'
+    lrz -1c testfile | wc
+
+  echo 'Test -r'
+    mkdir t
+    touch t/t{1..10}
+    lrz -r t
+    ls t
+    rm -r t
+
+  echo 'Test tar compatibility'
+    mkdir t
+    touch t/t{1..10}
+    tar --use-compress-program lrz -cvf testfile.tar.lrz t
+    tar --use-compress-program lrz -tvf testfile.tar.lrz | wc -l
+    rm -r t
+
+  echo 'test compress of 1 GB data with parallel --pipe --compress'
+    yes "`echo {1..100}`" |
+      head -c 1G |
+      parallel --pipe --block 100m --compress-program lrz cat |
+      wc -c
+
+  echo 'test compress of 1 GB with sort --compress-program'
+    yes "`echo {1..100}`" |
+      head -c 1G |
+      sort --compress-program lrz |
+      wc -c
+
+  echo 'test should not lrz -dc removes file'
+    rm testfile.lrz
+    echo OK > testfile
+    lrz testfile
+    lrz -dc testfile.lrz
+    ls testfile.lrz
+
+_EOS
+
+diff regressiontest.good regressiontest.out