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To: cygwin AT cygwin DOT com
Subject: Re: Anomaly in CRON execution of shell script
Date: Sun, 29 Dec 2024 10:38:34 +0000
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From: Chris Elvidge via Cygwin <cygwin AT cygwin DOT com>
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On 29/12/2024 at 00:20, Takashi Yano via Cygwin wrote:
> On Sat, 28 Dec 2024 17:07:10 +0000
> Chris Elvidge wrote:
>> I have a directory of files that I need the contained executables run
>> from CRON. (Like run-parts.)
>>
>> I have found that since 25/12/2024, when run from CRON, it doesn't
>> differentiate between executable and non-executable files. I.e. tries to
>> run the non-executables. It ran correctly on 24/12/2024, i.e apache2 and
>> updatedb ran, rest skipped.
>>
>> Check file (simplified bit of original):
>> $ cat bin/check-execute-bit
>> #!/bin/sh
>> cd $HOME/daily
>> for S in *; do
>>       [ -x "$S" ] && echo "$S : executable" || echo "$S : not executable"
>> done
>>
>> Directory contents:
>> $ ls -l $HOME/daily
>> total 48K
>> -rwxr-xr-x 1 celvi celvi  625 Apr 24  2024 apache2
>> -rw-r--r-- 1 celvi celvi  15K Apr 24  2024 apt
>> -rw-r--r-- 1 celvi celvi  355 Apr 24  2024 bsdmainutils
>> -rw-r--r-- 1 celvi celvi 1.6K Apr 24  2024 dpkg
>> -rw-r--r-- 1 celvi celvi 2.2K Apr 24  2024 locate
>> -rw-r--r-- 1 celvi celvi 1.3K Apr 24  2024 man-db
>> -rw-r--r-- 1 celvi celvi 1.1K Apr 24  2024 ntp
>> -rw-r--r-- 1 celvi celvi  257 Apr 26  2024 passwd
>> -rwxr-xr-x 1 celvi celvi  932 Apr 24  2024 updatedb
>>
>> Run from command line:
>> $ check-execute-bit
>> apache2 : executable
>> apt : not executable
>> bsdmainutils : not executable
>> dpkg : not executable
>> locate : not executable
>> man-db : not executable
>> ntp : not executable
>> passwd : not executable
>> updatedb : executable
>>
>> Output from CRON running check-execute-bit:
>> apache2 executable
>> apt executable
>> bsdmainutils executable
>> dpkg executable
>> locate executable
>> man-db executable
>> ntp executable
>> passwd executable
>> updatedb executable
>>
>>
>> Anyone any ideas where I can look next for what is going wrong?
> 
> If you are running cron as privileged account (like SYSTEM),
> perhaps, this is due to:
> https://cygwin.com/pipermail/cygwin/2024-December/256972.html
> 
> This problem will be fixed by:
> https://cygwin.com/pipermail/cygwin-patches/2024q4/013146.html
> 

OK. Thanks. I'll work around it for the time being.

-- 
Chris Elvidge
England


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