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Full Discussion: Sed in vi - \r and \n not giving desired results
Top Forums Shell Programming and Scripting Sed in vi - \r and \n not giving desired results Post 302533432 by DGPickett on Thursday 23rd of June 2011 04:06:44 PM
Old 06-23-2011
I generally use either \ or cntrl-v or \ + cntrl-v in front of enter for cr or nl in vi, aka 'visual ex', in ':' mode, which is raw 'ex', which is extended 'ed'.

BTW, sed, the stream editor, likes \n in regex (from field of substitute s) and \ + linefeed in substitute s to field, treats cr as a literal.

The other versions of vi (ex) and sed may honor \r and \n in other contexts, but as you note, it is spotty.

You can install in your own home dir a GNU version of vi and sed, and put it up-PATH to have a consistent home world. If on another ID, having your personal tools in a directory is handy, as you can add the dir up-PATH while you are there to get to your tools. You have to write scripts that do not assume your ID. You can share the tools to others easily, too. You just have to use the old tool where you cannot get to your version and in prod scripts.
 

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LEARN ABOUT DEBIAN

shtoolize

SHTOOLIZE.TMP(1)					      GNU Portable Shell Tool						  SHTOOLIZE.TMP(1)

NAME

       shtoolize - Build individual GNU shtool scripts

VERSION

       GNU shtool 2.0.8 (18-Jul-2008)

SYNOPSIS

       shtoolize [-h] [-v] [-q] [-o script] module [ module ... ]

DESCRIPTION

       The shtoolize program builds individual GNU shtool scripts (written to the default output file "shtool" or to the specified script) out of
       one or more shtool ingredient modules.  Available modules are:

	echo	   Print string with optional construct expansion
	mdate	   Pretty-print modification time of a file or dir
	table	   Pretty print a field-separated list as a table
	prop	   Display progress with a running propeller
	move	   Move files with simultan substitution
	install    Install a program, script or datafile
	mkdir	   Make one or more directories
	mkln	   Make link with calculation of relative paths
	mkshadow   Make a shadow tree
	fixperm    Fix file permissions inside a source tree
	rotate	   Rotate a logfile
	tarball    Roll distribution tarballs
	subst	   Apply sed(1) substitution operations
	platform   Platform identification utility
	arx	   Extended archive command
	slo	   Separate linker options by library class
	scpp	   Sharing C Pre-Processor
	version    Generate and maintain a version information file
	path	   Deal with program paths

       Additionally there is a pseudo-module ``"all"'' which can be used as a short-hand for ``"echo mdate table prop move install mkdir mkln
       mkshadow fixperm platform arx slo scpp version path"'', i.e. to build a shtool script with all modules in the standard order. An installed
       shtool is usually built this way via ``"shtoolize -o shtool all"''.

       Use the shtoolize program to build individual shtool scripts in case you want a smaller sized script and you don't need all of the
       available shtool functionality.	For instance for the classical Autoconf based free software package a "shtool" script build via
       ``"shtoolize -o shtool install mkdir"'' might be sufficient.

OPTIONS

       The following command line options exist:

       -h  Displays a short help page describing the usage of shtoolize.

       -v  Displays the version number of shtoolize/shtool.

       -q  Displays no processing information.

       -o script
	   Writes the output to file script instead to file ``"shtool"''.

EXAMPLE

       The typical free software package which is based on GNU libtool and GNU shtool one uses a "Makefile" entry like the following:

	#   Makefile entry for upgrading GNU tools
	upgrade-tools:
	    libtoolize -f -c
	    shtoolize -q all

       This upgrades the three files "ltmain.sh", "ltconfig" and "shtool" in the current source tree to the latest versions.

SEE ALSO

       shtool(1).

AUTHOR

	Ralf S. Engelschall
	rse@engelschall.com
	www.engelschall.com

18-Jul-2008							   shtool 2.0.8 						  SHTOOLIZE.TMP(1)
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