Find if file is 45 min old if yes delete

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# 1  
Old 03-18-2014
RedHat Find if file is 45 min old if yes delete

we have process2( which check for the file Pr_rn_Chk (generated by other process1). The process runs every 15 min.
if exist Pr_rn_Chk the process will exit. Else it will continue.

I want to check if the file Pr_rn_Chk is older than 45 min delete the file. so that 4th run should be ok.

can someone suggest easiest method to do that.
# 2  
Old 03-18-2014
# 3  
Old 03-18-2014
Since you run every 15 minutes, you can have three marker files you rename and touch to give you a 45 minute marker file.
Every 15 minute Cron script:
find head_dir -type f ! -newer marker45 | xargs -n128 rm
mv marker30 marker45 # destroys old marker45
mv marker15 marker30
touch marker15

The xargs gives you economy of scale and pipeline parallelism.

Last edited by DGPickett; 03-18-2014 at 02:44 PM..
# 4  
Old 03-18-2014
Below code will display file if it is older than 45 mins
find dir_name -type f -name "Pr_rn_Chk" -mmin +45

If you want to delete the file
find dir_name -type f -name "Pr_rn_Chk" -mmin +45 -exec rm -f {} \;

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