@@ -1244,8 +1244,8 @@ function _run_process {

     exec 6>&-

     if [[ -n ${SCREEN_LOGDIR} ]]; then

-        exec 1>&${SCREEN_LOGDIR}/screen-${service}.${CURRENT_LOG_TIME}.log 2>&1

-        ln -sf ${SCREEN_LOGDIR}/screen-${service}.${CURRENT_LOG_TIME}.log ${SCREEN_LOGDIR}/screen-${service}.log

+        exec 1>&${SCREEN_LOGDIR}/screen-${service}.log.${CURRENT_LOG_TIME} 2>&1

+        ln -sf ${SCREEN_LOGDIR}/screen-${service}.log.${CURRENT_LOG_TIME} ${SCREEN_LOGDIR}/screen-${service}.log

         # TODO(dtroyer): Hack to get stdout from the Python interpreter for the logs.

         export PYTHONUNBUFFERED=1

@@ -1329,9 +1329,9 @@ function screen_process {

     screen -S $SCREEN_NAME -X screen -t $name

     if [[ -n ${SCREEN_LOGDIR} ]]; then

-        screen -S $SCREEN_NAME -p $name -X logfile ${SCREEN_LOGDIR}/screen-${name}.${CURRENT_LOG_TIME}.log

+        screen -S $SCREEN_NAME -p $name -X logfile ${SCREEN_LOGDIR}/screen-${name}.log.${CURRENT_LOG_TIME}

         screen -S $SCREEN_NAME -p $name -X log on

-        ln -sf ${SCREEN_LOGDIR}/screen-${name}.${CURRENT_LOG_TIME}.log ${SCREEN_LOGDIR}/screen-${name}.log

+        ln -sf ${SCREEN_LOGDIR}/screen-${name}.log.${CURRENT_LOG_TIME} ${SCREEN_LOGDIR}/screen-${name}.log

     fi

     # sleep to allow bash to be ready to be send the command - we are

@@ -1377,7 +1377,7 @@ function screen_rc {

         echo "stuff \"$2$NL\"" >> $SCREENRC

         if [[ -n ${SCREEN_LOGDIR} ]]; then

-            echo "logfile ${SCREEN_LOGDIR}/screen-${1}.${CURRENT_LOG_TIME}.log" >>$SCREENRC

+            echo "logfile ${SCREEN_LOGDIR}/screen-${1}.log.${CURRENT_LOG_TIME}" >>$SCREENRC

             echo "log on" >>$SCREENRC

         fi

     fi

@@ -1489,8 +1489,8 @@ function _old_run_process {

     exec 6>&-

     if [[ -n ${SCREEN_LOGDIR} ]]; then

-        exec 1>&${SCREEN_LOGDIR}/screen-${1}.${CURRENT_LOG_TIME}.log 2>&1

-        ln -sf ${SCREEN_LOGDIR}/screen-${1}.${CURRENT_LOG_TIME}.log ${SCREEN_LOGDIR}/screen-${1}.log

+        exec 1>&${SCREEN_LOGDIR}/screen-${1}.log.${CURRENT_LOG_TIME} 2>&1

+        ln -sf ${SCREEN_LOGDIR}/screen-${1}.log.${CURRENT_LOG_TIME} ${SCREEN_LOGDIR}/screen-${1}.log

         # TODO(dtroyer): Hack to get stdout from the Python interpreter for the logs.

         export PYTHONUNBUFFERED=1

@@ -20,7 +20,7 @@ set +o xtrace

 # Defaults

 # --------

 # for DSTAT logging

-DSTAT_FILE=${DSTAT_FILE:-"dstat.txt"}

+DSTAT_FILE=${DSTAT_FILE:-"dstat.log"}

 # start_dstat() - Start running processes, including screen

@@ -370,15 +370,14 @@ if [[ -n "$LOGFILE" || -n "$SCREEN_LOGDIR" ]]; then

 fi

 if [[ -n "$LOGFILE" ]]; then

-    # First clean up old log files.  Use the user-specified ``LOGFILE``

-    # as the template to search for, appending '.*' to match the date

-    # we added on earlier runs.

-    LOGDIR=$(dirname "$LOGFILE")

-    LOGFILENAME=$(basename "$LOGFILE")

-    mkdir -p $LOGDIR

-    find $LOGDIR -maxdepth 1 -name $LOGFILENAME.\* -mtime +$LOGDAYS -exec rm {} \;

+    # Clean up old log files.  Append '.*' to the user-specified

+    # ``LOGFILE`` to match the date in the search template.

+    local logfile_dir="${LOGFILE%/*}"           # dirname

+    local logfile_name="${LOGFILE##*/}"         # basename

+    mkdir -p $logfile_dir

+    find $logfile_dir -maxdepth 1 -name $logfile_name.\* -mtime +$LOGDAYS -exec rm {} \;

     LOGFILE=$LOGFILE.${CURRENT_LOG_TIME}

-    SUMFILE=$LOGFILE.${CURRENT_LOG_TIME}.summary

+    SUMFILE=$LOGFILE.summary.${CURRENT_LOG_TIME}

     # Redirect output according to config

@@ -399,8 +398,8 @@ if [[ -n "$LOGFILE" ]]; then

     echo_summary "stack.sh log $LOGFILE"

     # Specified logfile name always links to the most recent log

-    ln -sf $LOGFILE $LOGDIR/$LOGFILENAME

-    ln -sf $SUMFILE $LOGDIR/$LOGFILENAME.summary

+    ln -sf $LOGFILE $logfile_dir/$logfile_name

+    ln -sf $SUMFILE $logfile_dir/$logfile_name.summary

 else

     # Set up output redirection without log files

     # Set fd 3 to a copy of stdout. So we can set fd 1 without losing