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33 lines
1.2 KiB
Bash
33 lines
1.2 KiB
Bash
#!/bin/sh
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#
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# Authors:Leitbogioro
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# https://github.com/leitbogioro/
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# https://www.zhihu.com/column/originaltechnic
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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 along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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UpdateLog="/var/log/packagesupdatefile.log"
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if [[ -f "$UpdateLog" ]]; then
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rm -rf $UpdateLog
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fi
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apt list --upgradable | awk 'END{print NR}' | tee -a "$UpdateLog" > /dev/null 2>&1
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UpdateRemind=`cat $UpdateLog | tail -n 1`
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UpdateNum=`expr $UpdateRemind - 1`
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if [ "$UpdateNum" -ge "1" ]; then
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printf "$UpdateNum packages can be upgraded. Run 'apt list --upgradable' to see them.\n"
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fi
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rm -rf $UpdateLog
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