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Full Discussion: awk evaluating a string as a math expression
Top Forums Shell Programming and Scripting awk evaluating a string as a math expression Post 302841357 by rveri on Wednesday 7th of August 2013 08:32:55 AM
Old 08-07-2013
avi.levi,
check this out:

Code:
$ awk -F "[:[]" '{x[NR]=$1;y[NR]=$3;cmd="echo "$2"|bc";(cmd|getline a[NR]);close(cmd)}END{for(i=1;i<=NR;i++) print x[i],"[" a[i] ":" y[i]}' file|awk -F";" '{print $1";"}'
wire         [31:0]       jerry_AWADDR;
wire                       jerry_AWVALID;
wire          [3:0]       jerry_AWCACHE;
wire          [3:0]       jerry_AWID;
wire          [3:0]       jerry_AWLEN;
wire          [1:0]       jerry_AWLOCK;
wire          [2:0]       jerry_AWPROT;
wire          [2:0]       jerry_AWSIZE;
wire          [1:0]       jerry_AWBURST;
wire         [63:0]       jerry_WDATA;
wire          [3:0]       jerry_WID;
wire                       jerry_WLAST;
wire          [7:0]       jerry_WSTRB;
wire                       jerry_WVALID;
wire                       jerry_BREADY;

 

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LEARN ABOUT CENTOS

trace-cmd-stack

TRACE-CMD-STACK(1)														TRACE-CMD-STACK(1)

NAME

       trace-cmd-stack - read, enable or disable Ftrace Linux kernel stack tracing.

SYNOPSIS

       trace-cmd stack

DESCRIPTION

       The trace-cmd(1) stack enables the Ftrace stack tracer within the kernel. The stack tracer enables the function tracer and at each function
       call within the kernel, the stack is checked. When a new maximum usage stack is discovered, it is recorded.

       When no option is used, the current stack is displayed.

       To enable the stack tracer, use the option --start, and to disable the stack tracer, use the option --stop. The output will be the maximum
       stack found since the start was enabled.

       Use --reset to reset the stack counter to zero.

SEE ALSO

       trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1),
       trace-cmd-list(1), trace-cmd-listen(1)

AUTHOR

       Written by Steven Rostedt, <rostedt@goodmis.org[1]>

RESOURCES

       git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git

COPYING

       Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL).

NOTES

	1. rostedt@goodmis.org
	   mailto:rostedt@goodmis.org

								    06/11/2014							TRACE-CMD-STACK(1)
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