Document ID: 1559

SYNOPSIS:  How to find out more about a given binary

DETAIL DESCRIPTION:

How to find more about a given binary.


SOLUTION SUMMARY:

Some very useful command in Solaris to find more about a given binary. 

All you ever wanted to know of a given binary. 

 Command  Typical use    Output           Comments
 -------  -----------    ---------        --------------------------------
 which    which ld       /usr/bin/ld      Looks at your $path and says  
                                          which executable you will get.

 whereis  whereis ld     ld: /usr/bin/ld  Looks in a bunch of standard
                                          places to give you a clue about
                                          where something is.

 what     what /bin/ld   /bin/ld:         Prints out version info from 
                                          binary.

 ldd      ldd /bin/ldd                    List dynamic dependencies
                                          tells you what libraries it wants 
                                          and where it is expecting to find
                                          them. N.B.  THIS CAN SAVE YOU MANY
                                          PROBLEMS! Run this early; you may
                                          get a surprise.
                         ldd /bin/ld
                        -lc.1 => /usr/lib/libc.so.1.10
                        -ldl.1 => /usr/lib/libdl.so.1.0

 file     file /bin/ld                    Makes a guess about file contents
                                          Uses /etc/magic, can set up your 
                                          own
                        file /bin/ld
                        /bin/ld:          sparc demand paged dynamically linked

                                          etc.


 size     size /bin/ld                    How big is an executable?
                        text    data    bss     dec     hex
                        122880  32768   40104   195752  2fca8

 nm       nm /bin/ld                      name list -- 
                                          doesn't have one if stripped
                        nm /usr/lib/libc.so.1.10
                        000015f8 T .div
                        00000790 T .mul
                        00027798 T .ptr_call
                        000024d8 T .rem
                        00022c08 T .stret1
                            etc etc.

 version  version `which CC`             version info -- only for SPARCompilers
                        version-id of "/opt/SUNWspro/bin/CC":  
                        SC2.0.1

 showrev       showrev -c /bin/ld        Prints the revision info for command.


DATE APPROVED: 03/29/98
KEYWORDS:      which where what ldd file size nm showrev sparc

OS RELEASE:    2.x