Search for a string at a particular position and replace with blank based on position Post: 302954537

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to find a position and print some string in the next and same position

I need a script for... how to find a position of column data and print some string in the next line and same position position should find based on *HEADER8* in text for ex: ord123 abs 123 987HEADER89 test234 ord124 abc 124 987HEADER88 test235 ...

2. Shell Programming and Scripting

Search for a string and replace the searched string in the same position

Hi All, My requisite is to search for the string "0108"(which is the year and has come in the wrong year format) in a particular column say 4th column in a tab delimited file and then replace it with 2008(the correct year format) in the same position where 0108 was found..The issue is the last...

3. UNIX for Dummies Questions & Answers

Search for a string and replace the searched string in the same position in samefile

4. Shell Programming and Scripting

Replace strings based on position and length?

Suppose i have a file which contains thousands of records. e.g adjgmptjadmwpgjmwmd i need to replace the string from 3rd to 8th position using awk script in entire file. And also the positions will be passed as parameter.

5. UNIX for Dummies Questions & Answers

Replace based on an exact position

Trying to use sed - but having no luck. I have a text file - I want to replace whatever character is in position 106, 157 and 237 w/ the string "xxx". Want this change for all lines w/in that text file. I'm open to using awk or whatever command would be best for replacing characters based...

6. UNIX for Dummies Questions & Answers

Search a string in the file and then replace another string after that position

Hi I am looking for a particular string in a file.If the string exists, then I want to replace another string with some other text.Once replaced, search for the same text after that character position in the file. :wall: E.g: Actual File content: Hello Name: Nitin Raj Welcome to Unix...

7. Shell Programming and Scripting

Search and Replace by record position

Hi All, I have a file that I would like to search for data and replace other data by record position number: Example search.. search for "CLARK KENT" and replace Amt data "000025" with "000155"??? I'm able to search and replace unique data but, came to a stump when wanting to replace data...

8. 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...

9. Shell Programming and Scripting

Fixed width file search based on position value

Hi, I am unable to find the right option to extract the data in the fixed width file. sample data abcd1234xgyhsyshijfkfk hujk9876 io xgla loki8787eljuwoejroiweo dkfj9098 dja Search based on position 8-9="xg" and print the entire row output ...

10. Shell Programming and Scripting

How to search for blank fields in a text file from a certain position?

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)