Re: [gentoo-user] stuff accumulating in /tmp
Alan McKinnon skrev: On Sunday 20 January 2008, Philip Webb wrote: 080119 Kevin wrote: To automatically wipe /tmp upon reboot, change WIPE_TMP to yes in /etc/conf.d/bootmisc Thanks: I will consider the implications. There aren't any implications. By *definition*, the contents of /tmp should not be relied on to survive a reboot or even subsequent invocations of the same program. What definition? What if there is a script that calls a program and redirects the output to /tmp and then calls another program that uses the ouput? Would that be wrong? Does the script count as a program or each command separately? See this example: cat $(find -name regexps) /tmp/all_regexps egrep -f /tmp/all_regexps some_file -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] stuff accumulating in /tmp
On Tue, 2008-01-22 at 04:35 +0100, Erik wrote: Alan McKinnon skrev: On Sunday 20 January 2008, Philip Webb wrote: 080119 Kevin wrote: To automatically wipe /tmp upon reboot, change WIPE_TMP to yes in /etc/conf.d/bootmisc Thanks: I will consider the implications. There aren't any implications. By *definition*, the contents of /tmp should not be relied on to survive a reboot or even subsequent invocations of the same program. What definition? What if there is a script that calls a program and redirects the output to /tmp and then calls another program that uses the ouput? Would that be wrong? Does the script count as a program or each command separately? See this example: cat $(find -name regexps) /tmp/all_regexps egrep -f /tmp/all_regexps some_file FHS defines that /tmp should not be used to store anything between reboots, but that /var/tmp should be used in this case. POSIX defines that /tmp cannot be relied upon between successive instances of the same program: /tmp A directory made available for applications that need a place to create temporary files. Applications shall be allowed to create files in this directory, but shall not assume that such files are preserved between invocations of the application. There is currently a looong discussion (flame?) going on about this on gentoo-dev: http://article.gmane.org/gmane.linux.gentoo.devel/54402 which quotes the appropriate standards. HTH, -- Iain Buchanan iaindb at netspace dot net dot au Emperor Palpatine: Soon the Rebellion will be crushed and young Skywalker will be one of us! -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] stuff accumulating in /tmp
On Sunday 20 January 2008, Dale wrote: Philip Webb wrote: A problem I have is that Firefox is not deleting .pdf files from /tmp after I have viewed saved them elsewhere (using Kpdf). There seems to be no place in Firefox or Kpdf settings to change this. Does anyone have a useful suggestion for automatically deleting them ? Since /tmp has been talked about on -dev, reboot will do it. Only if /tmp is a tmpfs. On a machine used as a desktop, this is a good idea as they are rebooted often and the FHS states that the contents of /tmp should not be relied on to survive a reboot. On a server style machine that is not rebooted often, tmpwatch running in a cron does a good job of this. alan -- Alan McKinnon alan dot mckinnon at gmail dot com -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] stuff accumulating in /tmp
On Sunday 20 January 2008, Philip Webb wrote: 080119 Kevin wrote: To automatically wipe /tmp upon reboot, change WIPE_TMP to yes in /etc/conf.d/bootmisc Thanks: I will consider the implications. There aren't any implications. By *definition*, the contents of /tmp should not be relied on to survive a reboot or even subsequent invocations of the same program. Any app that does rely on the contents of /tmp still being there is thus fundamentally broken in it's behaviour and should be avoided or fixed. -- Alan McKinnon alan dot mckinnon at gmail dot com -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] stuff accumulating in /tmp
080120 Alan McKinnon wrote: On Sunday 20 January 2008, Philip Webb wrote: 080119 Kevin wrote: To automatically wipe /tmp upon reboot, change WIPE_TMP to yes in /etc/conf.d/bootmisc Thanks: I will consider the implications. There aren't any implications. By *definition*, the contents of /tmp should not be relied on to survive a reboot or even subsequent invocations of the same program. Any app that does rely on the contents of /tmp still being there is thus fundamentally broken in it's behaviour and should be avoided or fixed. Strictly, you are correct -- that's the POSIX rule, which I know about -- , but there is a problem when using Mutt (another user mentioned this). By default, Mutt creates its temporary files in /tmp , which applies to the working file for new msgs even when editing with Vim (which defaults to keeping its .swp running-back-up files in '.'). Leaving the defaults in place, if power fails while composing a msg, the surviving .swp files wb preserved in /tmp , but only if you don't set WIPE_TMP=yes . If you set that to yes, when you reboot after the power failure, the .swp back-up wb lost. You need to change .muttrc to include 'set tmpdir=/var/tmp', which should always survive a reboot (acc to POSIX). -- ,, SUPPORT ___//___, Philip Webb : [EMAIL PROTECTED] ELECTRIC /] [] [] [] [] []| Centre for Urban Community Studies TRANSIT`-O--O---' University of Toronto -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] stuff accumulating in /tmp
Philip Webb wrote: A problem I have is that Firefox is not deleting .pdf files from /tmp after I have viewed saved them elsewhere (using Kpdf). There seems to be no place in Firefox or Kpdf settings to change this. Does anyone have a useful suggestion for automatically deleting them ? Since /tmp has been talked about on -dev, reboot will do it. Dale :-) :-) -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] stuff accumulating in /tmp
080119 Dale wrote: Philip Webb wrote: A problem I have is that Firefox is not deleting .pdf files from /tmp after I have viewed saved them elsewhere (using Kpdf). There seems to be no place in Firefox or Kpdf settings to change this. Does anyone have a useful suggestion for automatically deleting them ? Since /tmp has been talked about on -dev, reboot will do it. No, it doesn't: some system setting I'm missing ? -- ,, SUPPORT ___//___, Philip Webb : [EMAIL PROTECTED] ELECTRIC /] [] [] [] [] []| Centre for Urban Community Studies TRANSIT`-O--O---' University of Toronto -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] stuff accumulating in /tmp
Philip Webb wrote: 080119 Dale wrote: Philip Webb wrote: A problem I have is that Firefox is not deleting .pdf files from /tmp after I have viewed saved them elsewhere (using Kpdf). There seems to be no place in Firefox or Kpdf settings to change this. Does anyone have a useful suggestion for automatically deleting them ? Since /tmp has been talked about on -dev, reboot will do it. No, it doesn't: some system setting I'm missing ? To automatically wipe /tmp upon reboot. Change WIPE_TMP to yes in /etc/conf.d/bootmisc -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] stuff accumulating in /tmp
080119 Kevin wrote: To automatically wipe /tmp upon reboot, change WIPE_TMP to yes in /etc/conf.d/bootmisc Thanks: I will consider the implications. -- ,, SUPPORT ___//___, Philip Webb : [EMAIL PROTECTED] ELECTRIC /] [] [] [] [] []| Centre for Urban Community Studies TRANSIT`-O--O---' University of Toronto -- gentoo-user@lists.gentoo.org mailing list
