Need a Shell Script for FTP Post: 302925841

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Top Forums Shell Programming and Scripting Need a Shell Script for FTP Post 302925841 by maruf on Wednesday 19th of November 2014 02:40:16 PM

11-19-2014

Banned

Need a Shell Script for FTP

Code:

exec >/tmp/log
exec 2>&1  
  HOST=''
  ftpuser=''
  ftppass=''
  NOW=$(date +"%m-%d-%Y")
  FILE="XXXX.$(date +%y%m%d)"
if ! mkdir /tmp/$$
then
        echo "Couldn't create /tmp/$$" >&2
        exit 1
fi

echo "Storing into /tmp/$$" >&2

SrcDir="FTP"
DstDi='/tmp/'

trap "rm -Rf /tmp/$$" EXIT # Clean up temp folder when the script quits by any means

# Check if you can connect.
ftp -nvd $HOST <<EOF
quote user $ftpuser
quote pass $ftppass
hash
prompt off
ls
EOF

if [ "$?" -ne 0 ]
then
        echo "Couldn't connect" >&2
        exit
fi

# Get the remote file
ftp -nvd $HOST <<EOF
quote USER $ftpuser 
quote PASS $ftppass
hash
prompt off
lcd /tmp/$$
bin
get $FILE
bye
EOF

if [ "$?" -ne 0 ]
then
        echo "Couldn't retrieve $FILE" >&2
        exit
fi

OLDIFS="$IFS" # Special IFS variable controls splitting of unquoted variables
IFS="/"

for FILE in /tmp/$$/*
do
        if [ ! -f "$FILE" ]
        then
                echo "No files retrieved" >&2
                exit 1
        fi

        set -- $FILE        # Splits /path/to/file into $1="", $2="path", $3="to", $4="file"
        shift $(( $# - 1 )) # $1="file", all the rest disappears

        if [ "$(wc -c < "${DstDi}/$1")" -ne "$(wc -c < "/tmp/$$/$1")" ]
        then
                echo "Sizes of original and new file differ" >&2
                exit
        fi
done

IFS="$OLDIFS"

maruf

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LEARN ABOUT REDHAT

mktemp

MKTEMP(1)						    BSD General Commands Manual 						 MKTEMP(1)

NAME

     mktemp -- make temporary file name (unique)

SYNOPSIS

     mktemp [-d] [-q] [-u] template

DESCRIPTION

     The mktemp utility takes the given file name template and overwrites a portion of it to create a file name.  This file name is unique and
     suitable for use by the application.  The template may be any file name with at least 6 of 'Xs' appended to it, for example /tmp/temp.XXXXXX.
     The trailing 'Xs' are replaced with the current process number and/or a unique letter combination.  The number of unique file names mktemp
     can return depends on the number of 'Xs' provided; six 'Xs' will result in mktemp testing roughly 26 ** 6 combinations.

     If mktemp can successfully generate a unique file name, the file is created with mode 0600 (unless the -u flag is given) and the filename is
     printed to standard output.

OPTIONS

     The available options are as follows:

     -d      Make a directory instead of a file.

     -q      Fail silently if an error occurs.	This is useful if a script does not want error output to go to standard error.

     -u      Operate in ``unsafe'' mode.  The temp file will be unlinked before mktemp exits.  This is slightly better than mktemp(3) but still
	     introduces a race condition.  Use of this option is not encouraged.

RETURN VALUES

     The mktemp utility exits with a value of 0 on success, and 1 on failure.

EXAMPLES

     The following sh(1) fragment illustrates a simple use of mktemp where the script should quit if it cannot get a safe temporary file.

	   TMPFILE=`mktemp /tmp/$0.XXXXXX` || exit 1
	   echo "program output" >> $TMPFILE

     In this case, we want the script to catch the error itself.

	   TMPFILE=`mktemp -q /tmp/$0.XXXXXX`
	   if [ $? -ne 0 ]; then
		   echo "$0: Can't create temp file, exiting..."
		   exit 1
	   fi

     Note that one can also check to see that $TMPFILE is zero length instead of checking $?.  This would allow the check to be done later one in
     the script (since $? would get clobbered by the next shell command).

SEE ALSO

     mkstemp(3), mktemp(3)

HISTORY

     The mktemp utility appeared in OpenBSD.

BSD
								November, 20, 1996							       BSD

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