By default TMPwatch is already installed.
If not please run:
yum install tmpwatch -y
To clean up files not accessed by 2 weeks (24 * 14 days = 336) :
tmpwatch --mtime --all 336 /tmp
If you want to delete old files even if they accessed (12 hours old):
/usr/sbin/tmpwatch -am 12 /tmp
If you not want to remove but just test what will be removed:
tmpwatch --mtime -t --all 336 /tmp
Also it is possible to automate the task, we go run:
crontab -e
And paste the following code:
0 4 * * * /usr/sbin/tmpwatch -am 12 /tmp
then press Control+X (on PC) or Command+x (on Mac)
you will get confirmation do you want to save. Type Y for yes, and press enter