执行df -h命令报错

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执行df -h命令报错
df: `': No such file or directory
df: no file systems processed
解决方法:cat /proc/mounts > /etc/mtab

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2019-12-20 10:28
angelina;WAITFOR DELAY '0:0:5'--
2019-12-20 10:28
angelina);WAITFOR DELAY '0:0:5'--
2019-12-20 10:28
angelina';WAITFOR DELAY '0:0:5'--
2019-12-20 10:28
angelina');WAITFOR DELAY '0:0:5'--
2019-12-20 10:28
angelina;SELECT PG_SLEEP(5)--
2019-12-20 10:28
angelina);SELECT PG_SLEEP(5)--
2019-12-20 10:28
angelina';SELECT PG_SLEEP(5)--
2019-12-20 10:28
angelina');SELECT PG_SLEEP(5)--
2019-12-20 10:28
(SELECT CHAR(113)+CHAR(118)+CHAR(107)+CHAR(122)+CHAR(113)+(SELECT (CASE WHEN (7419=7419) THEN CHAR(49) ELSE CHAR(48) END))+CHAR(113)+CHAR(98)+CHAR(107)+CHAR(118)+CHAR(113))
2019-12-20 10:28
(SELECT (CHR(113)||CHR(118)||CHR(107)||CHR(122)||CHR(113))||(SELECT (CASE WHEN (2303=2303) THEN 1 ELSE 0 END))::text||(CHR(113)||CHR(98)||CHR(107)||CHR(118)||CHR(113)))