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Full Discussion: check for file existence on remote machine using sftp
Top Forums Shell Programming and Scripting check for file existence on remote machine using sftp Post 302404676 by narasimha123 on Wednesday 17th of March 2010 03:16:42 AM
Old 03-17-2010
hi All,
Thanks for all your thoughts on this.Finally i am able to code a program which ftp's the files from remote machine to my local machine.But a part from this i need to add a process here i am giving full details .please guide me on this.

i need to add a process to the below existing script which has to poll every 5 minutes until 12 P.M from 5 A.M .How can i add this to the below script.Please advice me.

every my script will be triggerd at 5 A.M through scheduler.

Code:
comdta=/var/opt/etl/datsrc/3com/data
cominp=/var/opt/etl/datsrc/3com/input
comtmp=/var/opt/etl/datsrc/3com/temp
comlog=/var/opt/etl/datsrc/3com/log
logdate=`date +%Y%m%d%H%M%S`;
lognm="3com_FTP_$logdate.log"
trgr_file="3Com_Files_Delivered.txt"
infile="3Com_*"
maillist=`eval echo $TCOM_MAIL_LIST`
flag="N"


####################################################################
#
#REMOVING LOG FILES OLDER THAN 30 DAYS
#
####################################################################

find $comlog -type f -name '3com_FTP_*.log' -follow -mtime +30 -exec rm {} \; -print


#----Log Errors in Log File---------#

inf_log()
{
	echo "INFO: $@"  >> $comlog/$lognm
}

err()
{
	echo "ERROR: $@"  >> $comlog/$lognm
	exit 1
}


#######################################################################
#
# FTP PROCESS To check the existence of the trigger file every 5 min
# and if exist move all the input files from SFTP Server to 3com folder
#
#######################################################################


cd $cominp


echo Log BEGIN For $logdate>$comlog/$lognm


while [ "$flag" != "Y" ]
do
sftp -b - $TCOM_SFTP_FILES <<EOF >$comlog/$lognm
get /$trgr_file
bye
EOF

if [[ -f $trgr_file ]]; then
inf_log "Trigger File Exist on SFTP Server........."
inf_log "Copying 3Com Files Started.........."
sftp -b - $TCOM_SFTP_FILES <<EOF >$comlog/$lognm
mget /$infile
bye
EOF
flag='Y'
else
sleep 300
fi
done

#--------Now copying Plan,Pipeline,Forecast file(s) from input to data directory-------#

cp 3Com_Plan* $comdta
cp 3Com_Pipeline* $comdta
cp 3Com_Forecast* $comdta


#-------Mail SFTP status----------------------------#

grep -q 'Fetching' $comlog/$lognm

if [ $? -eq 0 ]; then
	inf_log "SFTP File Transfer Success!!!"
else
	echo "SFTP File Trasnsfer Failed\n"|mailx -s "3COM File Transfer Failed -ERROR" $maillist
	err " SFTP file transfer Failed - File is not Found!!!"
	exit 1
fi



#-------Remove input file(s) from SFTP Server-------#

sftp -b - $TCOM_SFTP_FILES <<EOF >>$comlog/$lognm
cd /
rm $infile
quit
EOF



#-------Notifying SFTP File(s) Removal Status-------#

grep -q 'not found' $comlog/$lognm
if [ $? -eq 0 ]; then
	err " Removal of 3Com File(s) from SFTP Box Failed!!!"
else
	inf_log " Removal of 3Com File(s) from SFTP Box is Success!!!"
	exit 0
fi


THANKS
narasimharao
Last edited by pludi; 03-17-2010 at 05:42 AM.. Reason: code tags, please...
 

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LEARN ABOUT DEBIAN

checkbashisms

CHECKBASHISMS(1)					      General Commands Manual						  CHECKBASHISMS(1)

NAME

       checkbashisms - check for bashisms in /bin/sh scripts

SYNOPSIS

       checkbashisms script ...
       checkbashisms --help|--version

DESCRIPTION

       checkbashisms, based on one of the checks from the lintian system, performs basic checks on /bin/sh shell scripts for the possible presence
       of bashisms.  It takes the names of the shell scripts on the command line, and outputs warnings if possible bashisms are detected.

       Note that the definition of a bashism in this context roughly equates to "a shell feature that is not required to be supported  by  POSIX";
       this means that some issues flagged may be permitted under optional sections of POSIX, such as XSI or User Portability.

       In  cases  where  POSIX	and  Debian  Policy  disagree, checkbashisms by default allows extensions permitted by Policy but may also provide
       options for stricter checking.

OPTIONS

       --help, -h
	      Show a summary of options.

       --newline, -n
	      Check for "echo -n" usage (non POSIX but required by Debian Policy 10.4.)

       --posix, -p
	      Check for issues which are non POSIX but required to be supported by Debian Policy 10.4 (implies -n).

       --force, -f
	      Force each script to be checked, even if it would normally not be (for instance, it has a bash or non POSIX shell shebang or appears
	      to be a shell wrapper).

       --extra, -x
	      Highlight lines which, whilst they do not contain bashisms, may be useful in determining whether a particular issue is a false posi-
	      tive which may be ignored.  For example, the use of "$BASH_ENV" may be preceded by checking whether "$BASH" is set.

       --version, -v
	      Show version and copyright information.

EXIT VALUES

       The exit value will be 0 if no possible bashisms or other problems were detected.  Otherwise it will be the sum of the following error val-
       ues:

       1      A possible bashism was detected.

       2      A file was skipped for some reason, for example, because it was unreadable or not found.	The warning message will give details.

SEE ALSO

       lintian(1).

AUTHOR

       checkbashisms  was originally written as a shell script by Yann Dirson <dirson@debian.org> and rewritten in Perl with many more features by
       Julian Gilbey <jdg@debian.org>.

DEBIAN
								 Debian Utilities						  CHECKBASHISMS(1)
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