I have a shell script that runs all the time looking for a certain type of file and then it processes the file through a series of other scripts. The script is watching a directory that has files uploaded to it via SFTP. It already checks the size of the file to make sure that it is not still uploading before it starts processing. I would like to place another check in the script that looks for the existance of another file before processing begins. The script looks like:
Code:
#!/bin/ksh
PATH=/gers/nurev/menu/pub/sbin:/gers/nurev/menu/pub/bin:/gers/nurev/menu/pub/mac
:/gers/nurev/menu/adm/sbin:/gers/nurev/menu/adm/bin:/gers/nurev/menu/adm/mac:/ge
rs/nurev/custom:/gers/nurev/fix:/gers/nurev/src_rev/fix:/gers/nurev/opt/path:/ge
rs/nurev/bin:/g/bin:/usr/bin:/etc:/usr/sbin:/usr/ucb:/sbin:.
ORACLE_HOME=/gers/nurev
ORACLE_SID=nurev
export PATH
export ORACLE_HOME
export ORACLE_SID
#
# 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=$2
local fileNewName="/gers/nurev/datafiles/str${fileExtension}.asc"
local filePrintPath="/gers/nurev/print"
local fileTmpPath="/gers/nurev/tmp"
local fileODIName="str${fileExtension}.pos"
mv -Eignore $fileName $fileNewName
prepup $fileNewName $fileExtension
mv -Eignore $filePrintPath/$fileODIName $fileTmpPath/$fileODIName
save2tmp $fileExtension
call_siu $fileExtension
}
# Main Processing
nsec=1
while [[ "$(date +%H%M)" -lt 2329 ]]
do
for fileName in /gers/nurev/datafiles/[Uu][Pp][Ll][Oo][Aa][Dd].[0-9][0-9][0-9
][0-9]
do
fileExtension=${fileName#*.}
is_file_arrived "$fileName" && nsec=1 && processFile $fileName $fileExtension
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
...I'd like to check for a file in /gers/genret/tmp/poll_####.txt (where "####" is the $fileExtension variable. I think the file check should be in the "Main Processing" section before it sends to the file to the "is_file_arrived" function? I'f there is a "poll_####.txt" file present I would just like the script to move onto the next file and look at it again later. This would prevent two files of the same type processing at the same time. I'm thinking something like a "if-then"?
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11-12-2006
Have a shell script check for a file to exist before processing another file
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