Bash 脚本:检查目录可读性
#!/bin/bash
TESTDIR=$1
while [[ ${#TESTDIR} -gt 1 ]]; do
sudo -u syslog ls '$TESTDIR' >/dev/null 2>&1 &&
echo 'syslog can read contents of $TESTDIR' ||
echo 'syslog cannot read contents of $TESTDIR'
TESTDIR=$(dirname '$TESTDIR')
done
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