How to exit a script with error ? Post: 302836439

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Top Forums Shell Programming and Scripting How to exit a script with error ? Post 302836439 by Salil Gupta on Wednesday 24th of July 2013 07:27:52 AM

07-24-2013

Registered User

How to exit a script with error ?

Hi,

I have a script ABC which calls another script XYZ. Function of XYZ is to ftp a file from one server to another.

code for ABC:

Code:

#!/bin/ksh
PATH=/usr/bin

home/user/xyz "$@"

exit $?
~

code for xyz:

Code:

#!/bin/ksh
HOSTNAME=$1
 SRCNAME=$2
  DSTNAME=$3

### This file holds the outget of the FTP commands for success checking
  FTPCHK=/tmp/ftpchk.$$
  #touch $FTPCHK
  echo "" > $FTPCHK

SRCFILE=$SRCNAME

DSTFILE=$DSTNAME


echo Source Host: $HOSTNAME
echo Source File Name: $SRCFILE
echo Destination File: $DSTFILE

echo `date` Beginning FTP download...
ftp -v ${HOSTNAME} <<EOF >>$FTPCHK 2>&1
 ascii
 nlist ${SRCFILE}
 get ${SRCFILE}  ${DSTFILE}
 quit
EOF

### Check for FTP errors
  CHK1=`grep -c "226 Transfer complete." $FTPCHK`
  CHK2=`grep -c "226 ASCII Transfer complete." $FTPCHK`
  CHK3=`grep -ic "226 transfer complete" $FTPCHK`
  CHK4=`grep -ic "226 File send OK." $FTPCHK`

  ### In NT, There should transmissions complete:
  ### One for the data transfer,
  ### One for the nlist

 if [ $CHK1 -eq 2 ] || [ $CHK2 -eq 2 ] || [ $CHK1 -eq 1 -a $CHK2 -eq 1 ] || [ $CHK3 -eq 2 ] || [ $CHK4 -eq 1 ]; then
    RC=0
    echo "OK: FTP Transmission Worked"
    echo '--------------------------------------------------------------'
    cat $FTPCHK
    echo '--------------------------------------------------------------'


  else
     RC=1
     echo "ERROR: FTP Transmission Failed"
     banner "ERROR"
     echo '--------------------------------------------------------------'
     cat $FTPCHK
     echo '--------------------------------------------------------------'
  fi

date
ls -al ${DSTFILE}

rm $FTPCHK

echo '---------------------------------------------------------------------'

exit $RC

In script XYZ, I am trying to ftp a file. So during ftp , whenever it shows that space is less than size of file, it should ftp the partial according to the available space and prompt a message about it and also prompt a message to outer script that inner script could not complete successfully. Hence resulting in the failure of outer script, due to partial ftp of file.

Also please post the comments about the each step of script to explain what is happening in that step. Thanks a lot in advance.

Salil Gupta

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LEARN ABOUT PHP

ftp_chdir

FTP_CHDIR(3)								 1							      FTP_CHDIR(3)

ftp_chdir - Changes the current directory on a FTP server

SYNOPSIS

       bool ftp_chdir (resource  $ftp_stream, string  $directory)

DESCRIPTION

	Changes the current directory to the specified one.

PARAMETERS

	      o $ftp_stream
		- The link identifier of the FTP connection.

	      o $directory
		- The target directory.

RETURN VALUES

	Returns TRUE on success or FALSE on failure. If changing directory fails, PHP will also throw a warning.

EXAMPLES

       Example #1

	      ftp_chdir(3) example

	      <?php

	      // set up basic connection
	      $conn_id = ftp_connect($ftp_server);

	      // login with username and password
	      $login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);

	      // check connection
	      if ((!$conn_id) || (!$login_result)) {
		  die("FTP connection has failed !");
	      }

	      echo "Current directory: " . ftp_pwd($conn_id) . "
";

	      // try to change the directory to somedir
	      if (ftp_chdir($conn_id, "somedir")) {
		  echo "Current directory is now: " . ftp_pwd($conn_id) . "
";
	      } else {
		  echo "Couldn't change directory
";
	      }

	      // close the connection
	      ftp_close($conn_id);
	      ?>

SEE ALSO

       ftp_cdup(3), ftp_pwd(3).

PHP Documentation Group 													      FTP_CHDIR(3)

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