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If then else in with mget command

 
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Top Forums UNIX for Dummies Questions & Answers If then else in with mget command
# 1  
Old 03-02-2011
Question If then else in with mget command
Hi Friends,
I need to use if then else logic with the mget command.I need to check if {JOURNAL_CODE}*_1_Audit*.txt exists then download it (using mget)and if not then leave it.Same for the {JOURNAL_CODE}*_2_Audit*.txt file.Can you please tell me how can i achive that?

Code:
sftp -b - "$FTPUSER"@"$FTPHOST"  <<SFTP_END
 cd $FTPDIR
 -mget ${JOURNAL_CODE}*_1_Audit*.txt
 -mget ${JOURNAL_CODE}*_2_Audit*.txt
 exit
SFTP_END

Moderator's Comments:
Mod Comment Please use [code] and [/code] tags when posting code, data or logs etc. to preserve formatting and enhance readability, thanks.
Last edited by zaxxon; 03-02-2011 at 08:20 AM.. Reason: code tags
# 2  
Old 03-02-2011
ftp and sftp do not offer things like if/then/else and so on.
You would have to connect with ftp/sftp, get the list, hand it over to shell script logic, decide what to get or not and issue ftp/sftp again.
Since you are using sftp, you might want to scp instead to write more compact commands than ftp syntax.
# 3  
Old 03-02-2011
Hi,
Can i collect the file name using ls in a variableon the FTP server?If i can get the file name in the variable then i can use the mget for retreving the required fileSmilie
# 4  
Old 03-02-2011
You did not tell anything about the other suggestions like using scp instead of sftp, but yes, you can do this, but the problem will be, that every output your sftp client produces, will be caught in that variable.
A more clean solution would be using ssh/scp.

Example (adjust your shell and <user> <host> etc. of course!):
Code:
#!/bin/bash

echo "Starting.. -" $(date)

# get list:
echo "Getting file list ..."
FILELIST="$(ssh -o "ConnectTimeout=3" -o "BatchMode yes" <user>@<host> ls -1 /directory/${JOURNAL_CODE}*_[1-2]_Audit*.txt)"

# if $FILELIST not empty, then get files:
if [ -n $FILELIST ]; then
   for file in $FILELIST; do
      echo "Getting file $file ..."
      scp <user>@<host>:/directory/$file /localdestdir
   done
else
   echo "Sorry, nothing there."
fi

echo "This is the End -" $(date)
echo "--------------------------------------"

exit 0

Untested, maybe some slight modifications needed.
Last edited by zaxxon; 03-02-2011 at 11:16 AM.. Reason: added things in case it should be automated and written to a log via cron or what do I know ;)
 
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