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Top Forums UNIX for Beginners Questions & Answers How to identify delimiter to find and replace a string with sed? Post 303040500 by duke0001 on Wednesday 30th of October 2019 11:08:45 AM
Old 10-30-2019
RudiC:

Thanks for your questions and advice. My Unix is Solaris 10. It seems sed do not support EREs. Please see following output. As for date regex is concerned, this format was created by some other people and has been in production for years. I could not change it at this moment. So the best expression will still be like '01-MON-20XX' or '31-MON-20XX'. These dates are government fiscal quarter begin date and end date. It is in SQL statement. I want to use shell script to automate the change to new quarter begin date and end date for data process and report generation. You are absolutely right. $NEWDATA is variable which is queried from database and put with sed to replace old date. Here is output:

Code:
/home/oracle> sed -r "s/[0-3][0-9]-($(locale abmon | tr 'a-z;' 'A-Z|'))-[12][09][0-9]{2}/"'01-OCT-2019'"/" test4.txt
sed: illegal option -- r

/home/oracle> sed -E "s/[0-3][0-9]-($(locale abmon | tr 'a-z;' 'A-Z|'))-[12][09][0-9]{2}/"'01-OCT-2019'"/" test4.txt
sed: illegal option -- E

/home/oracle> sed -e "s/[0-3][0-9]-($(locale abmon | tr 'a-z;' 'A-Z|'))-[12][09][0-9]{2}/"'01-OCT-2019'"/" test4.txt
       ep.begin_date, ep.end_date, ep.facility_code,
AND    ep.begin_date <= '01-JUL-2019'
       ep.begin_date, ep.end_date, ep.facility_code,
AND    ep.begin_date <= '01-JUL-2019'
       ep.begin_date, ep.end_date, ep.facility_code,
AND    ep.begin_date <= '01-JUL-2019'

Now question is: based on Solaris 10, how can sed handle the extended regular expressions? Please give me some idea. Thanks.
 

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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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