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Full Discussion: Request for advise on how to remove control characters in a UNIX file extracted from top command
Top Forums Shell Programming and Scripting Request for advise on how to remove control characters in a UNIX file extracted from top command Post 302850159 by MR.bean on Wednesday 4th of September 2013 04:51:12 AM
Old 09-04-2013
Code:
bash-3.2$ cat input.txt
^[[7m  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                         ^[[m^O^[[K
^[[m^O12759 aaaa_a    16   0  100m 3188 2616 S  0.0  0.0   0:00.23 xxx aaaa_axxxxxx                                                                               ^[[m^O
^[[m^O24435 aaaa_a    16   0  100m 3200 2624 S  0.0  0.0   0:00.19 xxx aaaa_axxxxxx                                                                               ^[[m^O
^[[m^O25623 aaaa_a    15   0  100m 3192 2624 S  0.0  0.0   0:00.28 xxx aaaa_axxxxxx                                                                               ^[[m^O
^[[m^O29634 aaaa_a    16   0  100m 3204 2632 S  0.0  0.0   0:00.35 xxx aaaa_axxxxxx                                                                               ^[[m^O

bash-3.2$ perl -pne 's/\^\[\[\d*m\^?O?//g; s/\^\[\[K//g' input.txt
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                         
12759 aaaa_a    16   0  100m 3188 2616 S  0.0  0.0   0:00.23 xxx aaaa_axxxxxx                                                                               
24435 aaaa_a    16   0  100m 3200 2624 S  0.0  0.0   0:00.19 xxx aaaa_axxxxxx                                                                               
25623 aaaa_a    15   0  100m 3192 2624 S  0.0  0.0   0:00.28 xxx aaaa_axxxxxx                                                                               
29634 aaaa_a    16   0  100m 3204 2632 S  0.0  0.0   0:00.35 xxx aaaa_axxxxxx

This User Gave Thanks to MR.bean For This Post:
karthikram
 

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LEARN ABOUT CENTOS

glpushdebuggroup

GLPUSHDEBUGGROUP(3G)						   OpenGL Manual					      GLPUSHDEBUGGROUP(3G)

NAME

       glPushDebugGroup - push a named debug group into the command stream

C SPECIFICATION

       void glPushDebugGroup(GLenum source, GLuint id, GLsizei length, const char * message);

PARAMETERS

       source
	   The source of the debug message.

       id
	   The identifier of the message.

       length
	   The length of the message to be sent to the debug output stream.

       message
	   The a string containing the message to be sent to the debug output stream.

DESCRIPTION

       glPushDebugGroup pushes a debug group described by the string message into the command stream. The value of id specifies the ID of messages
       generated. The parameter length contains the number of characters in message. If length is negative, it is implied that message contains a
       null terminated string. The message has the specified source and id, the typeGL_DEBUG_TYPE_PUSH_GROUP, and
       severityGL_DEBUG_SEVERITY_NOTIFICATION. The GL will put a new debug group on top of the debug group stack which inherits the control of the
       volume of debug output of the debug group previously residing on the top of the debug group stack. Because debug groups are strictly
       hierarchical, any additional control of the debug output volume will only apply within the active debug group and the debug groups pushed
       on top of the active debug group.

ERRORS

       GL_INVALID_ENUM is generated if the value of source is neither GL_DEBUG_SOURCE_APPLICATION nor GL_DEBUG_SOURCE_THIRD_PARTY.

       GL_INVALID_VALUE is generated if length is negative and the number of characters in message, excluding the null-terminator, is not less
       than the value of GL_MAX_DEBUG_MESSAGE_LENGTH.

ASSOCIATED GETS

       glGet() with argument GL_MAX_DEBUG_MESSAGE_LENGTH.

SEE ALSO

       glPopDebugGroup(), glObjectLabel(), glObjectPtrLabel().

COPYRIGHT

       Copyright (C) 2012 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication
       License, v 1.0, 8 June 1999.  http://opencontent.org/openpub/.

AUTHORS

       opengl.org

opengl.org							    06/10/2014						      GLPUSHDEBUGGROUP(3G)
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