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Full Discussion: Combining awk command to make it more efficient
Top Forums Shell Programming and Scripting Combining awk command to make it more efficient Post 302982529 by Don Cragun on Thursday 29th of September 2016 02:33:53 PM
Old 09-29-2016
Quote:
Originally Posted by SkySmart
this looks like it could work. but it assumes "supports" will always be in the position it is grabbed from. what im trying to do is print any pattern that is present in the position that "supports" is in.

for instance. the following text may be in the position:

Code:
/bin/ksh fashsearch.sh giraffes are great animals

in which case, what i want to do is print fastsearch.sh. essentially do what the following code is doing, but instead of using multiple commands, i'd like just one instance of awk to do everything.

Code:
ps -ef | awk -F"/bin/ksh" '{print $2}' | awk '{print $1}'

Perhaps something more like:
Code:
pattern="/bin/ksh"
ps -ef | awk -v pat="$pattern" '{for(i=1;i<NF;i++)if($i~pat)print $(i+1)}'

pattern="channel=5182"
ps -ef | awk -v pat="$pattern" '{for(i=1;i<NF;i++)if($i~pat)print $(i+1)}'

will give you what you want???
This User Gave Thanks to Don Cragun For This Post:
SkySmart
 

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LEARN ABOUT OPENDARWIN

tcl_createclosehandler

Tcl_CreateCloseHandler(3)				      Tcl Library Procedures					 Tcl_CreateCloseHandler(3)

__________________________________________________________________________________________________________________________________________________

NAME

       Tcl_CreateCloseHandler, Tcl_DeleteCloseHandler - arrange for callbacks when channels are closed

SYNOPSIS

       #include <tcl.h>

       void
       Tcl_CreateCloseHandler(channel, proc, clientData)

       void
       Tcl_DeleteCloseHandler(channel, proc, clientData)

ARGUMENTS

       Tcl_Channel     channel	      (in)	The channel for which to create or delete a close callback.

       Tcl_CloseProc   *proc	      (in)	The procedure to call as the callback.

       ClientData      clientData     (in)	Arbitrary one-word value to pass to proc.
_________________________________________________________________

DESCRIPTION

       Tcl_CreateCloseHandler  arranges  for  proc  to	be called when channel is closed with Tcl_Close or Tcl_UnregisterChannel, or using the Tcl
       close command.  Proc should match the following prototype:

	      typedef void Tcl_CloseProc(
		ClientData clientData);

       The clientData is the same as the value provided in the call to Tcl_CreateCloseHandler.

       Tcl_DeleteCloseHandler removes a close callback for channel.  The proc and clientData identify which close callback to remove;  Tcl_Delete-
       CloseHandler does nothing if its proc and clientData arguments do not match the proc and clientData for a  close handler for channel.

SEE ALSO

       close(n), Tcl_Close(3), Tcl_UnregisterChannel(3)

KEYWORDS

       callback, channel closing

Tcl									7.5						 Tcl_CreateCloseHandler(3)
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