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# C A L L   C U S T O M E R   D E F I N E D   P A R A M E T E R S



#----------------------------------------------------------------------------------



cd /ERQ/100/DM/SCRIPTS



. ./DMPR2ERQ_log_interface.env







#----------------------------------------------------------------------------------



# I N T E R N A L   S E C T I O N   ! ! !



#----------------------------------------------------------------------------------







ORG_PWD=$PWD                                        # save directory where i am



COUNT=0                                             # actual value for retry logic



DATE=`date +'%y%m%d%H%M%S'`                         # creating time stamp



HUMAN_DATE=`date +'%d.%m.%Y - %H:%M:%S'`            # creating human readable time stamp



TMP_LOGFILE=$LOG_FILE_OUT.$$                        # temporary log file with PID



SLEEP_TIME=10                                       # how long to wait until check of file size







#----------------------------------------------------------------------------------



# S E N D  E M A I L  O N  E R R O R



#----------------------------------------------------------------------------------







SUBJECT="ERROR in script send_DMPR2ERQ_log.sh for Queue $QUEUE"







function error_mail



  {



  BODY="nDate:   $HUMAN_DATE CET 



  nScript: $ORG_PWD/send_DMPR2ERQ_log.sh 



  nServer: `hostname` 



  nnThe following error occured: 



  n---------------------------- 



  $ERROR_MSG"







  echo "$BODY" | mailx -s "$SUBJECT" "$EMAIL_ADDRESS"



  }







#----------------------------------------------------------------------------------



# R E T U R N C O D E S



#----------------------------------------------------------------------------------



RC_OK=0                                             # used in spoolin and spoolout



RC_PARAM_ERR=1                                      # used in spoolin and spoolout



RC_LOG_ERR=10                                       # used in spoolin and spoolout



RC_SI_PATH_ERR=11                                   # used in spoolin



RC_SO_PATH_ERR=12                                   # used in             spoolout



RC_ARCHIVE_PATH_ERR=13                              # used in spoolin



RC_ERROR_PATH_ERR=14                                # used in spoolin



RC_NO_FILES_ERR=15                                  # used in spoolin



RC_NO_QMGR_ERR=20                                   # used in spoolin and spoolout



RC_NO_QUEUE_ERR=21                                  # used in spoolin and spoolout



RC_NO_MQSERVER_ERR=22                               # used in spoolin and spoolout



RC_DPBAT_ERR=100                                    # used in spoolin and spoolout



RC_NO_FILENAME_ERR=300



RC_FILENAME_ERR=310







#----------------------------------------------------------------------------------



# E R R O R   S E C T I O N



#----------------------------------------------------------------------------------



SCRIPT_RC=$RC_OK                                    # init return code











if touch $LOG_FILE_OUT                              # log file access?



  then



    echo "n["$DATE"]" > $TMP_LOGFILE



  else



    echo "ERROR: RC=$RC_LOG_ERR - Can't create $LOG_FILE_OUT"



    return $RC_LOG_ERR



fi







VARCHECK=`echo $MHQ_MQMGRNAME | wc -w`



if [ $VARCHECK = "0" ]                              # Queue Manager defined?



  then



    echo "ERROR: RC=$RC_NO_QMGR_ERR - Queue Manager not defined" >> $TMP_LOGFILE



    ERROR_MSG=$ERROR_MSG"nERROR: RC=$RC_NO_QMGR_ERR - Queue Manager not defined!"



    SCRIPT_RC=$RC_NO_QMGR_ERR



fi







VARCHECK=`echo $QUEUE | wc -w`



if [ $VARCHECK = "0" ]                              # Queue defined?



  then



    echo "ERROR: RC=$RC_NO_QUEUE_ERR - Target Queue not defined" >> $TMP_LOGFILE



    ERROR_MSG=$ERROR_MSG"nERROR: RC=$RC_NO_QUEUE_ERR - Target Queue not defined"



    SCRIPT_RC=$RC_NO_QUEUE_ERR



fi







VARCHECK=`echo $MQSERVER | wc -w`



if [ $VARCHECK = "0" ]                              # MQ Server connectivity defined?



  then



    echo "ERROR: RC=$RC_NO_MQSERVER_ERR - Variable MQSERVER not defined" >> $TMP_LOGFILE



    ERROR_MSG=$ERROR_MSG"nERROR: RC=$RC_NO_MQSERVER_ERR - Variable MQSERVER not defined"



    SCRIPT_RC=$RC_NO_MQSERVER_ERR



fi







VARCHECK=`echo $ARCHIVE_PATH | wc -w`



if [ $VARCHECK = "0" ]                              # Archive path defined?



  then



    echo "ERROR: RC=$RC_ARCHIVE_PATH_ERR - Variable ARCHIVE_PATH not defined" >> $TMP_LOGFILE



    ERROR_MSG=$ERROR_MSG"nERROR: RC=$RC_ARCHIVE_PATH_ERR - Variable ARCHIVE_PATH not defined"



    SCRIPT_RC=$RC_ARCHIVE_PATH_ERR



fi







VARCHECK=`echo $ERROR_PATH | wc -w`



if [ $VARCHECK = "0" ]                              # Error path defined?



  then



    echo "ERROR: RC=$RC_ERROR_PATH_ERR - Variable ERROR_PATH not defined" >> $TMP_LOGFILE



    ERROR_MSG=$ERROR_MSG"nERROR: RC=$RC_ERROR_PATH_ERR - Variable ERROR_PATH not defined"



    SCRIPT_RC=$RC_ERROR_PATH_ERR



fi







VARCHECK=`echo $SI_PATH | wc -w`



if [ $VARCHECK != "0" ]                             # parameter SI_PATH defined?



  then



    cd $SI_PATH



    CD_RC=$?



    if [ $CD_RC = "0" ]



      then



                echo "--> Changed to spoolin directory $SI_PATH successfully." >> $TMP_LOGFILE



      else



                echo "ERROR: RC=$RC_SI_PATH_ERR - could not change to spoolin directory $SI_PATH" >> $TMP_LOGFILE



                ERROR_MSG=$ERROR_MSG"nERROR: RC=$RC_SI_PATH_ERR - could not change to spoolin directory $SI_PATH"



                SCRIPT_RC=$RC_SI_PATH_ERR



    fi



  else



    echo "ERROR: RC=$RC_SI_PATH_ERR - no variable for spoolin directory specified" >> $TMP_LOGFILE



    ERROR_MSG=$ERROR_MSG"nERROR: RC=$RC_SI_PATH_ERR - no variable for spoolin directory specified"



    SCRIPT_RC=$RC_SI_PATH_ERR



fi







#----------------------------------------------------------------------------------



# S P O O L I N



#----------------------------------------------------------------------------------



if [ $SCRIPT_RC -eq "0" ]



then



  #----------------------------------------------------------------------------------



  # F I L E   P O L L I N G



  #----------------------------------------------------------------------------------



    cd /srv/ERQ_P2M_DUALACCESS/DM/LOG



    cp `ls -tr DMPR2ERP* | tail -1` /ERQ/100/DM/OUTBOUND







cd /ERQ/100/DM/OUTBOUND   



for FILE in `ls -l DMPR2ERP*`; do



  if [ -f $FILE ]; then



    FILE_SIZE_1=`ls -l $FILE | awk '{ printf("%s.%sn", $9, $5) }'`



    sleep $SLEEP_TIME



    FILE_SIZE_2=`ls -l $FILE | awk '{ printf("%s.%sn", $9, $5) }'`



    if [ $FILE_SIZE_1 = $FILE_SIZE_2 ]; then



      SI_FILENAME=$FILE



      echo "  > Putting file $SI_PATH/$SI_FILENAME to Queue $QUEUE" >> $TMP_LOGFILE



        #----------------------------------------------------------------------------------



        # D E T E R M I N E   S P O O L I N    O P T I O N



        #----------------------------------------------------------------------------------



        SI_CMD="si(si-id=$QUEUE, si-filename=$SI_FILENAME); end; "



        DPBAT_RC=0



        echo $SI_CMD | $MHQ_HOME/dpbat >> $TMP_LOGFILE 2>&1



        DPBAT_RC=$?



        echo "Return Code (RC) DPBAT = $DPBAT_RC" >> $TMP_LOGFILE



        if [ $DPBAT_RC = "0" ]



        then



          #----------------------------------------------------------------------------



          # if RC=0 the spool-in was succesful, move to archive directory



          #----------------------------------------------------------------------------



          echo "--> File $SI_PATH/$SI_FILENAME successfully put to Queue $QUEUE." >> $TMP_LOGFILE



                  mv $SI_PATH/$SI_FILENAME $ARCHIVE_PATH



                  echo "--> File $SI_PATH/$SI_FILENAME moved to archive directory. n " >> $TMP_LOGFILE



        else



          #----------------------------------------------------------------------------



          # if RC<>0 the spool-in was NOT succesful, move to error directory



          #----------------------------------------------------------------------------



          SCRIPT_RC=`expr $DPBAT_RC + $RC_DPBAT_ERR`  # some dpbat errors found!



          echo "--> Ended without putting file to Queue. (RC DPBAT: $DPBAT_RC)" >> $TMP_LOGFILE



          ERROR_MSG=$ERROR_MSG"nEnded without putting file to Queue. (RC DPBAT: $DPBAT_RC)"



                  mv $SI_PATH/$SI_FILENAME $ERROR_PATH



          echo "--> Moved file to error directory $ERROR_PATH." >> $TMP_LOGFILE



          ERROR_MSG=$ERROR_MSG"nMoved file to error directory $ERROR_PATH."



        fi



      fi



    fi



  done



else



echo "File $FILE does not exists" >> $TMP_LOGFILE



SCRIPT_RC=15



fi







#----------------------------------------------------------------------------------



# Analyze global error return code and send email if necessary



#----------------------------------------------------------------------------------



if [ $SCRIPT_RC -ne "0" ]



then



  echo "ERROR occured. (RC SCRIPT: $SCRIPT_RC)" >> $TMP_LOGFILE



  ERROR_MSG=$ERROR_MSG"nERROR occurred. (RC SCRIPT: $SCRIPT_RC)"



  if [ $ERROR_NOTIFICATION = "y" ]



    then



      echo "Notification sent to $EMAIL_ADDRESS" >> $TMP_LOGFILE



      ERROR_MSG=$ERROR_MSG"nNotification sent to $EMAIL_ADDRESS"



      error_mail



  fi



fi







#----------------------------------------------------------------------------------



# Append temporary log to main log and delete temporary log file



#----------------------------------------------------------------------------------



cat $TMP_LOGFILE >> $LOG_FILE_OUT



rm -f $TMP_LOGFILE



cd $ORG_PWD



return $SCRIPT_RC

Yes, the return statement can only be used to return an exit status from a shell function or a dot-script (a script being sourced using either . (dot) or source in shells that support that alias for .). Shell functions and dot-scripts are very similar in that respect.

The code that you show contains a return statement as its last executable statement, and this may be what throws the error if you ran the script as an ordinary script.

It may well be that your script is supposed to be executed as

. ./script.sh

rather than as

./script.sh

or that another script is supposed to do that (it's unknown). If you do run the script with the dot command (or source in e.g. bash), note that you will be left in /ERQ/100/DM/SCRIPTS after the end of the execution of the script (since this is where the script changes the working directory upon exiting).

Note also that the script uses some strange code to do ordinary things. For example, to test whether $ARCHIVE_PATH is defined it does

VARCHECK=`echo $ARCHIVE_PATH | wc -w`

if [ $VARCHECK = "0" ]

This test would not test whether it was undefined but whether it was empty (or contained only characters from $IFS). In fact, more than half the script is taken up by statements verifying configuration settings.

Instead, one could use

if [ "${ARCHIVE_PATH-is unset}" = "is unset" ]

or, in bash,

if [ ! -v ARCHIVE_PATH ]

or, if you just want to test for an empty value,

if [ -z "$ARCHIVE_PATH" ]

The script also uses ls in multiple places to get lists of files, which is less than ideal.