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Full Discussion: help with sed
Top Forums Shell Programming and Scripting help with sed Post 302407560 by NK4U on Thursday 25th of March 2010 07:15:33 PM
Old 03-25-2010
Quote:
Originally Posted by dunkar70
The script below should do what I think you are asking. You will need to update the variables for:
servers = a space-delimited list of the server names with login IDs
fileName = the full name with path of the file to be edited (assumes the same file on each server
newvalue = the new number to be inserted (assumes the same value for each server)

After executing this script, you will find a new file in each location with the same file name with a suffix of the current date (i.e. _20100325).

Code:
#!/bin/bash
 
#Variables - Update these as necessary
servers=( user1@server1 user2@server2 user3@server3 )
fileName=/path/to/file/file1
newValue=23
today=$(date +%Y%m%d)
 
#sed Command
sedCommand="sed s/HST|ABC|FF|[0-9][0-9]|||/HST|ABC|FF|${newValue}|||/"
 
for s in ${servers[@]}; do
    ssh ${s} mv ${fileName} ${fileName}_${today}; ${sedCommand} < ${fileName}_${today} > ${fileName};
done

If you need different values for each server, then this will need some tweaking.
Thanks Dunkar, i will try this
 

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LEARN ABOUT OSX

source

source(n)						       Tcl Built-In Commands							 source(n)

__________________________________________________________________________________________________________________________________________________

NAME

       source - Evaluate a file or resource as a Tcl script

SYNOPSIS

       source fileName

       source -encoding encodingName fileName													   |
_________________________________________________________________

DESCRIPTION

       This  command takes the contents of the specified file or resource and passes it to the Tcl interpreter as a text script.  The return value
       from source is the return value of the last command executed in the script.  If an error occurs in evaluating the contents  of  the  script
       then  the source command will return that error.  If a return command is invoked from within the script then the remainder of the file will
       be skipped and the source command will return normally with the result from the return command.

       The end-of-file character for files is "32" (^Z) for all platforms.  The source command will  read  files  up  to  this  character.   This
       restriction  does  not  exist for the read or gets commands, allowing for files containing code and data segments (scripted documents).	If
       you require a "^Z" in code for string comparison, you can use "32" or "u001a", which will be safely substituted by the  Tcl  interpreter
       into "^Z".

       The  -encoding  option  is  used  to specify the encoding of the data stored in fileName.  When the -encoding option is omitted, the system |
       encoding is assumed.

EXAMPLE

       Run the script in the file foo.tcl and then the script in the file bar.tcl:
	      source foo.tcl
	      source bar.tcl
       Alternatively:
	      foreach scriptFile {foo.tcl bar.tcl} {
		 source $scriptFile
	      }

SEE ALSO

       file(n), cd(n), encoding(n), info(n)

KEYWORDS

       file, script

Tcl																	 source(n)
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