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Full Discussion: Combining multiple seds into one awk
Top Forums Shell Programming and Scripting Combining multiple seds into one awk Post 302973189 by Don Cragun on Sunday 15th of May 2016 11:36:22 PM
Old 05-16-2016
You can get rid of those errors by changing:
Code:
echo $blah | sed -s 's/|/=0,--/g' -s 's/$/=0/g'

to:
Code:
echo $blah | sed -e 's/|/=0,--/g' -e 's/$/=0/g'

or, more simply:
Code:
echo $blah | sed 's/|/=0,--/g
s/$/=0/g'

But, this is not at all equivalent to your original pipeline of an echo and four sed commands:
Code:
echo $blah | sed 's~ ~|~g' | sed 's-_space_- -g' | sed 's-_LP_-(-g' | sed 's-_RP_-)-g'

which could be replaced by:
Code:
echo $blah | sed -e 's~ ~|~g' -e 's-_space_- -g' -e 's-_LP_-(-g' -e 's-_RP_-)-g'

or, more simply:
Code:
echo $blah | sed 's~ ~|~g
s-_space_- -g
s-_LP_-(-g
s-_RP_-)-g'

This User Gave Thanks to Don Cragun For This Post:
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LEARN ABOUT LINUX

igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)
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