Bash – delete file on ftp server using bash commands

bashftpscripting

using bash commands and ftp connection i have to perform two tasks:

delete oldest file in some directory on ftp server. name of file that have to be deleted starts with backup_
delete oldest subdirectory (on ftp server) in some directory

can you help me how to achieve?

i have to integrate those functions in existing file, so i will have no problems how to create ftp connection etc.

Best Answer

You can use lftp as a non interactive ftp client from within the bash scripts.

Or assuming you have a fairly sane and modern distribution you could use curlftpfs FUSE filesystem to mount the ftp server folder as a local folder then use bash to do the logical bits you need to to, then unmount the ftp server.

This effectively takes away the complexity of having the files only available over ftp as the script will see the files as available locally.

There are plenty of examples available on how to delete files based on name or date, and there is an example on the curlftpfs site on how to mount and unmount file systems in scripts.

Related Solutions

Linux Bash – Delete Files from Remote FTP Server Older Than X Days

You could send a series of commands to lftp and wrap it in a shell script which calculates the filename of the too old files (see the script below).

TODAY=$(date --iso)                   # Today's date like YYYY-MM-DD
RMDATE=$(date --iso -d '6 days ago')  # TODAY minus X days - too old files
FTPUSER=username
FTPPW=password                        # Better load this from an encrypted file
FTPSERVER=FQDN_or_IP
LFTP=/usr/bin/lftp                    # Path to binary
TMPDIR=$(mktemp -d)                   # Your archives are here

# CAUTION: mput -E deletes local files after upload
echo -n "Uploading files via FTP... "
$LFTP << EOF
open ${FTPUSER}:${FTPPW}@${FTPSERVER}
cd backups/${HOSTNAME}
mkdir ${TODAY}
cd ${TODAY}
mput -E ${TMPDIR}/*
cd ..
rm -rf ${RMDATE}
bye
EOF
echo "Done."

Make sure nobody execpt root can read this script or put the credentials somewhere else. TMPDIR is the directory where the backups reside locally. Of course you need to edit the obivous parts.

HTH,
PEra

Ftp – Delete folders with FTP

You can try setting local_umask in vsftpd.conf

local_umask = 0002

Also consider looking into file_open_mode. This controls the permissions with which uploaded files are created with umasks being applied on top of this value.

Best Answer

Related Solutions

Linux Bash – Delete Files from Remote FTP Server Older Than X Days

Ftp – Delete folders with FTP

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