After the chown, you (manager.sys) no longer own the file,
and manager.sys is not quite root?
> -----Original Message-----
> From: John Korb [mailto:[log in to unmask]]
> Sent: Wednesday, June 25, 2003 12:01 PM
> To: [log in to unmask]
> Subject: Re: Strange POSIX/file system behavior
>
>
> Thanks to everyone for the input!
>
> Well, I finally got the "rm" command to remove the file. Why
> the "fix"
> matters to the shell, I don't know.
>
> I had been performing the following steps (from a program
> running from a
> MANAGER.SYS session):
>
> + BUILD the bytestream file specifying the full path name
> + FOPEN the file
> + FWRITE to the file (multiple times)
> + FCLOSE the file
> + chown the file to SAMBA.SHARE:SHARE
> + chmod the file to 744
>
> Then, after other processing takes place,
> + rm the file
>
> This final step, the "rm", didn't work, but the MPE/iX
> command PURGE did work.
>
> Well, I've found more odd behavior. Sometimes the "chmod" works, and
> sometimes it doesn't. It seems to always work when issued
> interactively,
> but when issued programmatically, it fails the majority of the time.
>
> So, I changed the order of the "chown" and "chmod" commands (so that
> "chmod" executes first, then the "chown"), and guess what!
> Suddenly the
> "rm" command works!
>
> There are certainly interesting quirks in POSIX-land, and I
> guess I can see
> how executing the "chmod" first (could make a difference.
>
> Thanks to all who offered suggestions! I tried them out and different
> points in my experiments and now I wish I had taken better
> notes, as there
> were some really strange errors along the way.
>
> John
>
>
> At 2003-06-25 01:26 PM, John Korb wrote:
> >Ah, the joys of POSIX-land.
> >
> >I'm trying to purge a file which was created by MANAGER.SYS
> in another
> >account. After MANAGER.SYS BUILDs the file, writes data to the file,
> >"chown" the file, and "chmod" the file, the file is
> available for various
> >applications to read. Or at least that is the idea. I've
> run one test,
> >and I've found a snag.
> >
> >The snag is that I need to "rm" the file. Unfortunately, "rm" won't
> >work. The really odd part is that "PURGE" will work (see
> below). Anyone
> >run into this quirk before? Anyone know WHY this happens?
> >
> >John
> >
> >(reminder: The user executing the commands below is MANAGER.SYS)
> >
> >shell/iX> pwd
> >/SHARE/PUB/data/dbinput/data
> >
> >shell/iX> ls -l
> >total 4200
> >-rw------- 1 SAMBA.SHARE SHARE 2150364 Jun 25 13:00
> >2003-06-25_data_good.csv
> >shell/iX> rm 2003-06-25_data_good.csv
> >rm: cannot unlink entry "2003-06-25_data_good.csv": No such
> file or directory
> >
> >shell/iX> rm 2003-06-25*
> >rm: cannot unlink entry "2003-06-25_data_good.csv": No such
> file or directory
> >
> >shell/iX> ls -l
> >total
> >4200
> >
> >-rw------- 1 SAMBA.SHARE SHARE 2150364 Jun 25 13:00
> >2003-06-25_data_good.csv
> >
> >shell/iX> chmod 774 2003-06-25_data_good.csv
> >shell/iX> ls -l
> >total 4200
> >-rwxrwxr-- 1 SAMBA.SHARE SHARE 2150364 Jun 25 13:00
> >2003-06-25_data_good.csv
> >
> >shell/iX> rm 2003-06-25_data_good.csv
> >rm: cannot unlink entry "2003-06-25_data_good.csv": No such
> file or directory
> >
> >shell/iX> rm *
> >rm: cannot unlink entry "2003-06-25_data_good.csv": No such
> file or directory
> >
> >shell/iX> ls -l
> >total 4200
> >-rwxrwxr-- 1 SAMBA.SHARE SHARE 2150364 Jun 25 13:00
> >2003-06-25_data_good.csv
> >
> >shell/iX> chown MANAGER.SYS:SYS 2003-06-25_data_good.csv
> >shell/iX> ls -l
> >total 4200
> >-rwxrwxr-- 1 MANAGER.SYS SYS 2150364 Jun 25 13:00
> >2003-06-25_data_good.csv
> >
> >shell/iX> chmod 777 2003-06-25_data_good.csv
> >shell/iX> ls -l
> >total 4200
> >-rwxrwxrwx 1 MANAGER.SYS SYS 2150364 Jun 25 13:00
> >2003-06-25_data_good.csv
> >
> >shell/iX> rm 2003-06-25_data_good.csv
> >rm: cannot unlink entry "2003-06-25_data_good.csv": No such
> file or directory
> >
> >shell/iX> exit
> >
> >:
> >:purge /SHARE/PUB/data/dbinput/data/2003-06-25_data_good.csv
> >:
> >:
> >:listfile /SHARE/PUB/data/dbinput/data/@,2
> >No match found for the pathname. (CIWARN 9043)
> >:
> >:sh
> >#############################################################
> ###########
> >
> > MPE/iX Shell and Utilities (A.50.02)
> > COPYRIGHT (c) Hewlett-Packard Company 1992, All Rights Reserved.
> >
> >#############################################################
> ###########
> >
> >
> >you have mail in /usr/mail/MANAGER.SYS.
> >shell/iX> cd /SHARE/PUB/data/dbinput/data
> >
> >shell/iX> ls -l
> >total 0
> >
> >shell/iX> pwd
> >/SHARE/PUB/data/dbinput/data
> >
> >shell/iX> exit
> >
> >:
> >
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>
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>
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