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Full Discussion: Sed command usage question
Top Forums UNIX for Beginners Questions & Answers Sed command usage question Post 303040842 by Vartika18 on Thursday 7th of November 2019 02:21:15 PM
Old 11-07-2019
Ok,
Example is
In a file content are
Code:
a
b
c
d

Code:
sed  'x;p;x' filename

How x will work?
 

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TRACE(1)						    BSD General Commands Manual 						  TRACE(1)

NAME
trace -- configure and record kernel trace events SYNOPSIS
trace -h trace -i [-b numbufs] trace -g trace -d [-a pid | -x pid] trace -r trace -n trace -e [-c class [-p class] [-s subclass]] [-a pid | -x pid] [-k code | -k code | -k code | -k code] trace -E [-c class [-p class] [-s subclass]] [-a pid | -x pid] [-k code | -k code | -k code | -k code] executable_path [optional args to executable] trace -t [-R rawfile] [-o OutputFilename] [-N] [ExtraCodeFilename1 ExtraCodeFilename2 ...] DESCRIPTION
The trace command allows developers to initialize and configure the kernel trace subsystem. Trace events can be recorded to an in-memory buf- fer, or logged directly to a file. Raw data files can later be decoded to a plaintext format. SEE ALSO
fs_usage(1), sc_usage(1), latency(1), top(1) Mac OS X October 28, 2010 Mac OS X
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