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File existence

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# 8  
Old 11-12-2014
By mistake I had -mtime (days) instead of -mmin (minutes) in my post.
Now corrected.

---------- Post updated at 06:39 AM ---------- Previous update was at 06:30 AM ----------

The HP-UX find does not have -mmin.
For simply testing if files exist you better use a file_exists function.
# 9  
Old 11-12-2014
Quote:
Originally Posted by haadiya
Hi,thanks for replying to my post.the above script will return files which is older than 2 hours or empty.I want a script to monitor a folder for new incoming files. if the folder has empty/incomplete file in last 2 hours then trigger something.

i can have a cron to check the folder for incoming new files

Code:
while [ 1 ]; do                        
  if [ -e /dir_name/*.txt ];
    echo "File is found"             
    exit 0
  fi
  sleep 60

but the above code would list all *.txt files when cron job is invoked.the folder is not empty.
in my folder i have files like
abc001.txt
abc002.txt
abc003.txt
------
------
But I want a script that checks my folder for incoming files.If the folder has empty/incomplete file in last 2 hours then trigger something.

OS:HP-UX
That won't work if more than one file matches your pattern.
# 10  
Old 11-12-2014
You can create a file with a timestamp of your choosing and then use the find command to select files that are newer than it.

Would that help?



Robin
# 11  
Old 11-12-2014
Yes, use "touch: to make a mark file and "find ... -newer mark. Now, you may need a utility to give date-time 2 hours ago. I wrote a utility much like GNU date, one solution, but tailored to do any to any +- any time: tm2tm, whose source in in here: "date" difference between FreeBSD & Linux

You can get GNU date here: HP-UX Porting and Archiving Centre | sh_utils-2.0

You can get GNU find here: HP-UX Porting and Archiving Centre | findutils-4.4.2
Last edited by DGPickett; 11-12-2014 at 01:40 PM..
# 12  
Old 11-13-2014
Thanks for the reply .I couldnt use -mmin along with find in HP-UX

Code:
find: bad option -mmin

# 13  
Old 11-13-2014
You can also tweak your TZ variable. For me in the UK, TZ=GMT0BST so to go two hours back I could do this:-
Code:
ORIG_TZ=$TZ
TZ=GMT2BST
date '+%Y %m %d %H %M %S' | read year month day hours minutes seconds
TZ=$ORIG_TZ

touch -mt ${year}${month}${day}${hours}${minutes}.${seconds} /tmp/my_ref_file
ls -l /tmp/my_ref?file
find . -newer /tmp/my_ref_file -type f -name "pattern*match"

Does something like this help? Note the dot before the ${seconds}This tweak works for me on HPUX, AIX, Solaris, but not RHEL. Not sure what I'm doing wrong there, but for that, you can use the GNU date commands more like this:-
Code:
date --date='2 hours ago' '+%Y %m %d %H %M %S'



I hope that this helps,
Robin
# 14  
Old 11-21-2014
Sometimes it is good to sleep a second after creating a 'find -newer' marker file, so no more files are created/modified for that second. Computers are fast, and a second can be more than long enough.
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