Mac Developer Library Developer


This manual page is for Mac OS X version 10.9

If you are running a different version of Mac OS X, view the documentation locally:

  • In Terminal, using the man(1) command

Reading manual pages

Manual pages are intended as a quick reference for people who already understand a technology.

  • To learn how the manual is organized or to learn about command syntax, read the manual page for manpages(5).

  • For more information about this technology, look for other documentation in the Apple Developer Library.

  • For general information about writing shell scripts, read Shell Scripting Primer.

VERSION(1)                                         OpenSSL                                        VERSION(1)

       version - print OpenSSL version information

       openssl version [-a] [-v] [-b] [-o] [-f] [-p]

       This command is used to print out version information about OpenSSL.

       -a  all information, this is the same as setting all the other flags.

       -v  the current OpenSSL version.

       -b  the date the current version of OpenSSL was built.

       -o  option information: various options set when the library was built.

       -c  compilation flags.

       -p  platform setting.

       -d  OPENSSLDIR setting.

       The output of openssl version -a would typically be used when sending in a bug report.

       The -d option was added in OpenSSL 0.9.7.

50                                               2013-03-05                                       VERSION(1)

Reporting Problems

The way to report a problem with this manual page depends on the type of problem:

Content errors
Report errors in the content of this documentation to the OpenSSL project by sending email to
Bug reports
Report bugs in the functionality of the described tool or API to Apple through Bug Reporter and to the OpenSSL project by sending email to
Formatting problems
Report formatting mistakes in the online version of these pages with the feedback links below.