I have this Korn shell script that runs via a cron entry. It runs in a loop "watching" a specific file system for files with a certain name. The file system that it is watching is an upload file system for an FTP server. When files that are the correct name come in, it takes the extension of the file and runs several other scripts against the file with the extension as a vairable. The script looks like:
#!/bin/ksh
#
# Function : is_file_arrived file
# Arg(s) : file = file to verify
# Output : None
# Status : 0 = yes file arrived, 1 = no
# Env. : IFA_WAIT : interval (secs) for file size check (def=5)
#
is_file_arrived() {
[ -z "$1" ] && return 1
local file=$1
local arrived=1
local size1 size2
if [ -f "$file" -a -z "$(fuser $file 2> /dev/null)" ] ; then
size1=$(ls -l $file 2>/dev/null | awk '{print $5}')
sleep ${IFA_WAIT:-15}
size2=$(ls -l $file 2>/dev/null | awk '{print $5}')
[ ${size1:-1} -eq ${size2:-2} ] && arrived=0
fi
return $arrived
}
processFile ()
{
local fileName=$1
local fileExtension=$2
local fileNewName="/ftp/datafiles/str${fileExtension}.asc"
local filePrintPath="/ftp/print"
local fileTmpPath="/ftp/tmp"
local fileODIName="str${fileExtension}.pos"
mv -Eignore $fileName $fileNewName # Add status check
prepup $fileNewName $fileExtension
mv -Eignore $filePrintPath/$fileODIName $fileTmpPath/$fileODIName
save2tmp $fileExtension
call_siu $fileExtension
}
# Main Processing
nsec=1
#hile :
while [[ "$(date +%H%M)" -lt 2329 ]]
do
for fileName in /ftp/datafiles/UPLOAD.[0-9][0-9][0-9][0-9]
do
fileExtension=${fileName#*.}
is_file_arrived "$fileName" && nsec=1 && processFile $fileName $fileExtens
ion
done
sleep $nsec
case $nsec in
1) nsec=15;;
15) nsec=45;;
45) nsec=90;;
90) nsec=300;;
300) nsec=600;;
600) nsec=900;;
*) nsec=1800;;
esac
done
... the problem is that I keep getting files that are "stuck" in the /ftp/datafiles file system. The log from the crontab states that these files have the incorrect permission for the script to process them? The wierd thing is that it happens after the script initially renames them to "str####.asc" so the cron user (which has permissions to the filesystem and the files intially) was able to rename them? The log looks like:
+ is_file_arrived /gers/genret/datafiles/UPLOAD.0043
+ nsec=1
+ processFile /gers/genret/datafiles/UPLOAD.0043 0043
mv: 0653-401 Cannot rename /gers/genret/print/str0043.pos to /gers/genret/tmp/str0043.pos:
A file or directory in the path name does not exist.
mv: /gers/genret/datafiles/str0043.asc: The file access permissions do not allow
the specified action.