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#!/usr/bin/env bash
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#
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# deltmpfiles - Delete current temporary files from pre-defined locations
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#
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# Copyright (C) 2021 Pekka Helenius <pekka.helenius@fjordtek.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#####################################
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#All tmp files currently being used
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TMP_USED=$(lsof +D /tmp/ | awk '{print $9," "}' | sort -u | tail -n+3 | sed 's/[ \t]*$//')
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#All tmp files
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TMP_ALL=$(find /tmp/ -type s -print -o -type f -print | sort -u | sed 's/[ \t]*$//')
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#Get all tmp files/symlinks/etc which are not being used at the moment
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# Exclude /tmp/.X11-unix/X0 from the list
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#
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TMP_NOTUSED=$(comm -23 <(echo "$TMP_ALL") <(echo "$TMP_USED") | sed 's/\/tmp\/.X11-unix\/X0//g; /^\s*$/d')
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echo "$TMP_NOTUSED" | while read line; do echo "Deleting file $line" && sudo rm $line ; done
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