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Full Discussion: Regex question
Top Forums Shell Programming and Scripting Regex question Post 303024014 by RudiC on Thursday 27th of September 2018 02:54:16 AM
Old 09-27-2018
Now - OpenVMS definitely is NOT "almost same to other other operating systems." Refer to their help system (unfortunately it's quite some time so I can't remember the correct syntax) about what options and regexes they accept.


Quote:
Originally Posted by boncuk
. . .
I tried Rudi's command on sun solaris,
. . .

Do you have access to GNU sed on your system?

You could try the -r option, which on several systems is equivalent to -E.

Applied to your a.txt file from post#6 on Ubuntu 18.04:

Code:
sed  -E '/^[0-9]{8}(0[1357]|1[01])/d' file
000000000000
433483433339
167750000010
sed  '/^[0-9]\{8\}\(0[1357]\|1[01]\)/d' file
000000000000
433483433339
167750000010

EDIT: on FreeBSD 9.0-RELEASE, the BRE sed fails, but
Code:
sed  -E '/^[0-9]{8}(0[1357]|1[01])/d' file
000000000000
433483433339
167750000010

This works on my FreeBSD:
Code:
sed  '/^[0-9]\{8\}0[1357]/d; /^[0-9]\{8\}1[01]/d' file

Last edited by RudiC; 09-27-2018 at 04:40 AM..
 

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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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