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Top Forums Shell Programming and Scripting replace first instance(not first instance in line) Post 302165326 by fpmurphy on Thursday 7th of February 2008 12:16:23 PM
Old 02-07-2008
Assuming it is the first occurance in a file, the following example should show you how to
do what you want to do using awk.

Code:
$ cat file
true line1
true line2
$ awk '/true/ && n == 0 { sub(/true/,"false"); ++n } { print }' file
false line1
true line2
$

 

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GENLIB_FLATTEN_PHFIG.3(October 1, 1997) 								   GENLIB_FLATTEN_PHFIG.3(October 1, 1997)

NAME
GENLIB_FLATTEN_PHFIG - flatten an instance in the current layout figure SYNOPSYS
#include <genlib.h> void GENLIB_FLATTEN_PHFIG(insname,concat) char *insname; char concat; ORIGIN
This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in Paris, France. Web : http://asim.lip6.fr/recherche/alliance/ E-mail : alliance-users@asim.lip6.fr PARAMETERS
insname Name of the instance to be flattened concat Indicate whether or not to concatenate instance name to instance' objects name DESCRIPTION
FLATTEN_PHFIG inserts the contents of an instance, but its connectors, in the current figure, and then destroys the instance. The concat parameter may take two values: YES to concatenate object name with instance names. NO to copy object names. In most case, the concat value must be YES, in order to warranty the unicity of names in the figure. It may otherwise fail, because the function would try to add in the current figure some object with an already existing name. EXAMPLE
#include <genlib.h> main() { /* Create a figure to work on */ GENLIB_DEF_PHFIG("mycell"); . . . /* Place an instance */ GENLIB_PLACE("model","instance", SYM_X, 0, 0); /* flatten an instance */ GENLIB_FLATTEN_PHFIG("instance", YES); /* Save all that on disk */ GENLIB_SAVE_PHFIG(); } SEE ALSO
genlib(1), GENLIB_LOINS(3). BUG REPORT
This tool is under development at the ASIM department of the LIP6 laboratory. We need your feedback to improve documentation and tools. PROCEDURAL GENERATION LANGUAGE
ASIM/LIP6 GENLIB_FLATTEN_PHFIG.3(October 1, 1997)
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