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Top Forums Shell Programming and Scripting hot to specify the last column in sed? Post 302207775 by fpmurphy on Friday 20th of June 2008 08:50:44 PM
Old 06-20-2008
This is very specific to the sample text provided and assumes that word boundary support, i.e. \b or \<, is not available in your version of sed.
Code:
$ sed -e 's/ aa$/ ++/' -e 's/aaa/+++/g' -e 's/aa/YY/g' -e 's/++/aa/' -e 's/+++/aaa/g' file
YY YY YY YY aa
c b c d YY a
e f ff mm aaa aaa 123
$

 

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GR_PLOT_CHAR(1) 						   User Commands						   GR_PLOT_CHAR(1)

NAME
gr_plot_char - plot samples versus time for byte/char data SYNOPSIS
gr_plot_char: [options] input_filenames DESCRIPTION
Takes a GNU Radio byte/char binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. OPTIONS
-h, --help show this help message and exit -B BLOCK, --block=BLOCK Specify the block size [default=1000] -s START, --start=START Specify where to start in the file [default=0] -R SAMPLE_RATE, --sample-rate=SAMPLE_RATE Set the sampler rate of the data [default=1.0] SEE ALSO
gr_plot_char(1) gr_plot_const(1) gr_plot_fft_c(1) gr_plot_fft_f(1) gr_plot_float(1) gr_plot_int(1) gr_plot_iq(1) gr_plot_psd_c(1) gr_plot_psd_f(1) gr_plot_qt(1) gr_plot_short(1) gr_plot_char 3.5 December 2011 GR_PLOT_CHAR(1)
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