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Top Forums Shell Programming and Scripting Help needed with File Watcher script Post 302542836 by stunnerz_84 on Thursday 28th of July 2011 06:28:50 PM
Old 07-28-2011
Help needed with File Watcher script

Hi all,
I am writing a script to do the following:
1) Check if there are any new <csv> files (in abc directory) to process
2) If there is new file, then perform some operation on that file.
3) Move it to a different location(after step2 is successful)
4) Do further processing on the file

Problem is that there can be either one or more <csv> files that will be available in this directory.
All the above steps need to be performed on each new file.

Not sure how i could do this on multiple files

This is how i wrote the script...The script is not coming out of the loop when running this...

Code:
while true
do
  for file in *.csv;
    do
     #Some operation 
   mv $file /xxx/yyy
   #some operation
   done
  sleep 10
  done

PLEASE HELP!!!!!
Thanks in Advance!!!

---------- Post updated at 05:28 PM ---------- Previous update was at 05:12 PM ----------

Hi Guys..I found this in the forum which i think is similar to what im trying to do...but Im not sure how i need to make the script exit when there are no files in that directory to process...Is there a way to do that?? PLEASE let me know!!!

https://www.unix.com/shell-programmin...cher-help.html

Code:
while true
do
    file_list=$( ls file1_* 2>/dev/null )
    if [ -n "$file_list" ] ; then
        for file_name in $file_list ; do
            echo "Processing $file_name"
            #run some command...
            if [ $? -eq 0 ] ; then
                mv $file_name .done/ # Assume .done dir
            else
                mv $file_name .error/ # Assume .error dir
            fi
        done
    fi
    sleep 2
done


THANKS in advance!!!!

Last edited by pludi; 07-29-2011 at 03:12 AM..
 

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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
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