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Full Discussion: Find and replace
Top Forums Shell Programming and Scripting Find and replace Post 302938883 by kmanivan82 on Thursday 19th of March 2015 06:18:06 PM
Old 03-19-2015
Find and replace
Hi Team,

one silly issue. but its not working for me.

I need to find a pattern a file and replace it with the given value in another file.

Here's the code snippet.
Code:
Search_String=100
Replace_String=151
cat  ${work}/temp_${CSV_File}  |   sed  's|"${Search_String}"|"${Replace_String}"|g'  >  $work/${work_1}/${CSV_File}


That means all the occurences of 100 will have to be replaced by 151. The value of Replace_String will be incrementing 1 in loop. If i hardcode the value, the function works. If I pass it through variable Search_String and Replace_String, the find and replace it not happening. Can anyone help me to fix the issue?

Regards,
KM

---------- Post updated at 03:48 AM ---------- Previous update was at 03:21 AM ----------

I got it.

If we use " (double quotes) instead of ' (single quotes), it will work.



cat ${work}/temp_${CSV_File} | sed "s|${Search_String}|${Replace_String}|g" > $work/${work_1}/${CSV_File}
Last edited by bartus11; 03-19-2015 at 07:16 PM.. Reason: Fixed [code] tags.
 

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LEARN ABOUT OSX

platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)
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