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OS error code 13: Permission denied MySQL error code MY-000013: Can’t get stat of ’%s’ (OS errno %d - %s) 

To obtain the error message for a MySQL Cluster error code, use the ndb_perror  utility. 

The meaning of system error messages may be dependent on your operating system. A given error code may mean different things on different operating systems. 

perror  supports the following options. 

• --help , --info , -I , -? 

Display a help message and exit. 

• --ndb 

Print the error message for a MySQL Cluster error code. 

This option was removed in MySQL 8.0.13. Use the ndb_perror  utility instead. 

• --silent , -s 

Silent mode. Print only the error message. 

• --verbose , -v 

Verbose mode. Print error code and message. This is the default behavior. 

• --version , -V 

Display version information and exit. 

## 4.8.3 zlib_decompress — Decompress mysqlpump ZLIB-Compressed Output 

The zlib_decompress  utility decompresses mysqlpump  output that was created using ZLIB compression. 

<img src='content_image/725411.jpg'>

Invoke zlib_decompress  like this: 

zlib_decompress input_file output_file 

## Example: 

mysqlpump --compress-output=ZLIB > dump.zlib zlib_decompress dump.zlib dump.txt 

To see a help message, invoke zlib_decompress  with no arguments. 

## Note 

If MySQL was configured with the -DWITH_ZLIB=system  option, zlib_decompress  is not built. In this case, the system openssl zlib  command can be used instead. 

To decompress mysqlpump  LZ4-compressed output, use lz4_decompress . See Section 4.8.1, “lz4_decompress — Decompress mysqlpump LZ4-Compressed Output” . 

## 4.9 Environment Variables 

