1 files changed, 20 insertions, 15 deletions
diff --git a/kerl b/kerl
index 6acdcb4..e561866 100755
--- a/kerl
+++ b/kerl
@@ -1083,21 +1083,26 @@ ACTIVATE_CSH
         build_plt "$absdir"
     fi
 
-    PID=$$
-    PARENT_PID=$(ps -p $PID -o ppid=) || exit 1
-    # shellcheck disable=SC2086
-    PARENT_CMD=$(ps -p $PARENT_PID -o ucomm | tail -n 1)
-    case "$PARENT_CMD" in
-        fish)
-            SHELL_SUFFIX='.fish'
-            ;;
-        csh)
-            SHELL_SUFFIX='.csh'
-            ;;
-        *)
-            SHELL_SUFFIX=''
-            ;;
-    esac
+    if which apk >/dev/null 2>&1; then
+        # Running on Alpine Linux, assuming non-exotic shell
+        SHELL_SUFFIX=''
+    else
+        PID=$$
+        PARENT_PID=$(ps -p $PID -o ppid=) || exit 1
+        # shellcheck disable=SC2086
+        PARENT_CMD=$(ps -p $PARENT_PID -o ucomm | tail -n 1)
+        case "$PARENT_CMD" in
+            fish)
+                SHELL_SUFFIX='.fish'
+                ;;
+            csh)
+                SHELL_SUFFIX='.csh'
+                ;;
+            *)
+                SHELL_SUFFIX=''
+                ;;
+        esac
+    fi
 
     echo 'You can activate this installation running the following command:'
     echo ". $absdir/activate$SHELL_SUFFIX"