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路径:
/usr/lib/update-notifier/package-system-locked
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#!/bin/sh # check if package system is locked # return 0 if unlocked, 2 if locked, 1 on error set -e for f in /var/lib/dpkg/lock /var/cache/apt/archives/lock \ /var/lib/apt/lists/lock /run/unattended-upgrades.lock; do [ -e $f ] || continue # fuser succeeds if there is at least one user if fuser $f; then exit 2 fi done exit 0
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