文件操作 - mtr-tiny.postinst
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文件: /var/lib/dpkg/info/mtr-tiny.postinst
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#!/bin/sh set -e if [ "$1" = configure ]; then # If setcap is installed, try setting cap_net_raw+ep, # which allows us to install our binaries without the setuid # bit. if command -v setcap > /dev/null; then if ! setcap cap_net_raw+ep /usr/bin/mtr-packet; then echo "Setcap failed on /usr/bin/mtr-packet, falling back to setuid" >&2 chmod u+s /usr/bin/mtr-packet fi else echo "Setcap is not installed, falling back to setuid" >&2 chmod u+s /usr/bin/mtr-packet fi fi exit 0
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