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Full Discussion: Double Spacing complex sed pipeline
Top Forums Shell Programming and Scripting Double Spacing complex sed pipeline Post 302265165 by omgsomuchppl on Friday 5th of December 2008 07:02:48 PM
Old 12-05-2008
Double Spacing complex sed pipeline
my script:
Code:
 
FILE="$1"
echo "You Entered $FILE"
if [ -f $FILE ]; then
tmp=$(cat $FILE | sed '/./!d' | sed -n '/regex/,/regex/{/regex/d;p}'| sed -n '/---/,+2!p' | sed -n '/#/!p' | sed 's/^[\
]*//' | sed -e\
s/[^:]*:// | sed -n '/==> /!p' | sed -n '/--> /!p' | sed -n '/regex/,+1!p' | sed -n '/======/!p' | sed -n '/regex/!p' | sed -n '\
/regex/!p' | sed -n '/regex /!p')
fi
MyVar=$(echo $tmp > my.txt)
FILE2="$2"
if [ -f $FILE2 ]; then
tmp2=$(cat $FILE2 | sed -n '/regex/,/regex/{/regex/d;p}' | sed -n '/#/!p' | sed -e s/[^:]*:// | sed /--------/,+10d)
fi
echo "You Entered $FILE2"
MyVar2=$(echo $tmp2 > my2.txt)
var=$(echo hi2.txt | sed '/^$/p' )
echo "$var"
cmp -b my.txt my2.txt

i know, i know. thats a long pipeline..my problem is that i cant seem to include anywhere in it to be able to double space it. sed G sed '/^$/p' or awk, they just really doesnt register. the sed pipeline is to long for me to do that.. ..

Anyways , what i have looks similar to the paragraph that i just typed. And probably this one when im through. the exception to this and my text file is that it has valid commands. nothing else. So it makes sense for me double space the file iim talking about and then somehow to use a loop to execute each line ( contaiing the comands ) .

i really struck. i really need help.
 

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LEARN ABOUT LINUX

shtool-subst

SHTOOL-SUBST.TMP(1)					      GNU Portable Shell Tool					       SHTOOL-SUBST.TMP(1)

NAME

       shtool-subst - GNU shtool sed(1) substitution operations

SYNOPSIS

       shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
       [-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]

DESCRIPTION

       This command applies one or more sed(1) substitution operations to stdin or any number of files.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -n, --nop
	   No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.

       -w, --warning
	   Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
	   operations resulted in no content change on all files.

       -q, --quiet
	   Suppress warning on substitution operation resulting in no content change.

       -s, --stealth
	   Stealth operation. Preserve timestamp on file.

       -i, --interactive
	   Enter interactive mode where the user has to approve each operation.

       -b, --backup ext
	   Preserve backup of original file using file name extension ext.  Default is to overwrite the original file.

       -e, --exec cmd
	   Specify sed(1) command directly.

       -f, --file cmd-file
	   Read sed(1) command from file.

EXAMPLE

	#   shell script
	shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]

	#    RPM spec-file
	%install
	    shtool subst -v -n 
		-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g' 
		-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g' 
		`find . -name Makefile -print`
	    make install

HISTORY

       The GNU shtool subst command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 2001 for GNU shtool.  It was prompted
       by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.

SEE ALSO

       shtool(1), sed(1).

18-Jul-2008							   shtool 2.0.8 					       SHTOOL-SUBST.TMP(1)
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