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Full Discussion: sed command to replace a line at a specific line number with some other line
Top Forums Shell Programming and Scripting sed command to replace a line at a specific line number with some other line Post 302797741 by vivek d r on Tuesday 23rd of April 2013 06:07:02 AM
Old 04-23-2013
sed command to replace a line at a specific line number with some other line
my requirement is,

consider a file output

Code:
cat output
 
blah sdjfhjkd jsdfhjksdh
sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf
 hellow there 
this doesnt look good
et cetc etc
etcetera


i want to replace a line of line number 4 ("this doesnt look good") with some other line


say echo "me there $chco" (with the echo command)

the below is not doing the job... i dont watnt to replace a string. All i need is it should delete line 4 and replace my whole sentence in that line

Code:
 
 sed -i '4 s|*|echo \"me there \$ech\" |'  output

PS: i dont want to perform any file redirection either
any help is appreciated thanks
 

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gst-convert

GST-CONVERT(1)							   User Commands						    GST-CONVERT(1)

NAME

       gst-convert - Smalltalk syntax converter and beautifier

DESCRIPTION

   Usage:
	      gst-convert [OPTION]... [INFILE [OUTFILE]] gst-convert [OPTION]... -o|--output OUTFILE INFILES

OPTIONS

       -q, --quiet
	      don't show any message

       -v, --verbose
	      print extra information while processing

       -f, --format=FORMAT
	      convert from given input format (supported formats are gst, gst2, sif, squeak)

       -F, --output-format=FORMAT convert to given output format (supported
	      formats are gst, gst2, squeak)

       -C, --class=REGEX
	      convert only classes matching REGEX

       -C, --class=+REGEX
	      in addition, convert classes matching REGEX

       -C, --class=-REGEX
	      do not convert classes matching REGEX

       -c, --category=REGEX
	      convert only classes whose category matches REGEX

       -c, --category=+REGEX
	      in addition, convert those whose category matches REGEX

       -c, --category=-REGEX
	      do not convert classes whose category matches REGEX

       -r, --rule='CODE->REPL'
	      look for CODE and replace it with REPL

       -o, --output OUTFILE
	      concatenate multiple input files into a single converted output file

       --help display this message and exit

       --version
	      print version information and exit

SEE ALSO

       The  full  documentation for gst-convert is maintained as a Texinfo manual.  If the info and gst-convert programs are properly installed at
       your site, the command

	      info gst

       should give you access to the complete manual.

gst-convert version 3.2.4					   December 2011						    GST-CONVERT(1)
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