MPE/iX System Utilities Reference Manual (32650-90882)

Chapter 22 193
SOMPATCH
Operation
Syntax
;
text
Parameters
text The ASCII text describing the problem and why the patch fixes it.
Example
;no_op call to check_for_overflow to prevent system error
;#2099 on bootup.
;source fix anticipated in SEL CORE release C.06
BACKOUT
This command returns a file previously patched to an unmodified state.
It is possible to undo a patch if the patch ID given in the LOG command used to apply the
patch is known. This number can be seen in the output of the SHOW [BACKOUTS] command.
The patch file name also can be used to back out the set of patches applied with the patch
file.
Backout commands are preserved in the ypatch information area. They can be also seen
when using the [BACKOUTS] option on the SHOW command.
All backouts are displayed as they are done (at program exit).
NOTE This command is not available unless the file being patched has been linked
with a ypatch file.
Syntax
BA[CKOUT] [ :
patchid ]`lb`
[ @ ]`lb`
[ file=
patchfilename ]
Parameters
patchid The patch to be backed out by its identification number (as
given with the LOG command).
@ Causes all applied patches to be backed out.
file= Causes the SOMPATCH utility to look for all patches applied
under
patchfilename and to back them all out. If there
is no reference to
patchfilename in the audit history, an
error message is issued.
patchfilename The name of a patch file that was used to make
modifications to the primary input file. Group and account
default to the logon if not specified.