Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How to identify delimiter to find and replace a string with sed?
Top Forums UNIX for Beginners Questions & Answers How to identify delimiter to find and replace a string with sed? Post 303040453 by duke0001 on Tuesday 29th of October 2019 04:23:01 PM
Old 10-29-2019
How to identify delimiter to find and replace a string with sed?
I need to find and replace a date format in a SQL script with sed. The original lines are like this:

Code:
       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'

Then I want to replace '01-JUL-2019' with variable which real value is '01-OCT-2019'. After replacement, the line in file should be like this:
AND ep.begin_date <= '01-OCT-2019'. I am not good at how to use sed to identify delimiter or separator and help sed to find right part of this string and replace it with right value. Please help with your code. My testing code is ugly so that I do not post them. I would like to learn from all of you. Thanks for help.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to find a certain string in a file and replace it with a value from another file using sed/awk?

Hi Everyone, I am new to this forum and new to sed/awk programming too !! I need to find particular string in file1(text file) and replace it with a value from another text file(file2) the file2 has only one line and the value to be replaced with is in the second column. file 1: (assert (=... (21 Replies)
Discussion started by: paramad
21 Replies

2. Shell Programming and Scripting

replace (sed?) a string in file with multiple lines (string) from variable

Can someone tell me how I can do this? e.g: a=$(echo -e wert trewt ertert ertert ertert erttert erterte rterter tertertert ert) How do i replace the STRING with $a? I try this: sed -i 's/STRING/'"$a"'/g' filename.ext but this don' t work (2 Replies)
Discussion started by: jforce
2 Replies

3. Shell Programming and Scripting

Help identify string using sed

I have the following output and would like to only identify strings with "vw" at the end. Here is the file contents: SELECT n.contract_num, n.descr, s.prj_level2_cf_val, r.descr, r.project_id, p.offering_id, o.n_cust_contract, u.name1, ' ', ' ', SUM (0), TO_CHAR (t.start_dt, 'YYYY-MM-DD'),... (6 Replies)
Discussion started by: bobroberts369
6 Replies

4. Shell Programming and Scripting

QUESTION1: grep only exact string. QUESTION2: find and replace only exact value with sed

QUESTION1: How do you grep only an exact string. I am using Solaris10 and do not have any GNU products installed. Contents of car.txt CAR1_KEY0 CAR1_KEY1 CAR2_KEY0 CAR2_KEY1 CAR1_KEY10 CURRENT COMMAND LINE: WHERE VARIABLE CAR_NUMBER=1 AND KEY_NUMBER=1 grep... (1 Reply)
Discussion started by: thibodc
1 Replies

5. Shell Programming and Scripting

Using sed in ksh to find and replace string

Hi All, I have a file in which contains location of various data files. I want to change locations using sed. Find and replace strings are in a separate file. Content of this file (/tmp/tt) - /dd/pp/test/test/1/ /pp/aa/test/dg1/ /dd/pp/test/test/2/ /pp/aa/test/dg2/ /dd/pp/test/test/3/... (2 Replies)
Discussion started by: pandeyra
2 Replies

6. Shell Programming and Scripting

sed or awk command to replace a string pattern with another string based on position of this string

here is what i want to achieve... consider a file contains below contents. the file size is large about 60mb cat dump.sql INSERT INTO `table1` (`id`, `action`, `date`, `descrip`, `lastModified`) VALUES (1,'Change','2011-05-05 00:00:00','Account Updated','2012-02-10... (10 Replies)
Discussion started by: vivek d r
10 Replies

7. Shell Programming and Scripting

HPUX find string in directory and filetype and replace string

Hi, Here's my dilemma. I need to replace the string Sept_2012 to Oct_2012 in all *config.py files within the current directory and below directories Is this possible? Also I am trying to find all instances of the string Sept_2012 within files in the current directory and below I have... (13 Replies)
Discussion started by: pure_jax
13 Replies

8. Shell Programming and Scripting

Help with Passing the Output of grep to sed command - to find and replace a string in a file.

I have a file example.txt as follows :SomeTextGoesHere $$TODAY_DT=20140818 $$TODAY_DT=20140818 $$TODAY_DT=20140818I need to automatically update the date (20140818) in the above file, by getting the new date as argument, using a shell script. (It would even be better if I could pass... (5 Replies)
Discussion started by: SriRamKrish
5 Replies

9. Shell Programming and Scripting

Sed: find and replace backwards, until string

Some help please: Need to find string ||(everything in front of it)B0300|| and replace it with ||0|| globally In: 16112121||||0||0||0||0||0||52||52||0||0||0||0||1507200053342B0300||1507200053342B0300||0||0||0||0700 Out: 16112121||||0||0||0||0||0||52||52||0||0||0||0||0||0||0||0||0||0700 ... (4 Replies)
Discussion started by: drbiloukos
4 Replies

10. UNIX for Beginners Questions & Answers

sed find replace after HOST string

Hi Everyone, I have a xml file, where i need to find this HOST=dbhost.domain.com and then replace only dbhost.domain.com with db.one.in so finally it should like this HOST=db.one.in i tried this but its not working. sed -i "s/^HOST=*com$/HOST=db.one.in/g" repository.xml ^... (4 Replies)
Discussion started by: shajay12
4 Replies

LEARN ABOUT DEBIAN

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)
All times are GMT -4. The time now is 04:28 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy