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Full Discussion: Hopefully a simple script, bash or perl...
Top Forums Shell Programming and Scripting Hopefully a simple script, bash or perl... Post 302486011 by anurag.singh on Thursday 6th of January 2011 05:13:02 PM
Old 01-06-2011
awk will do this with two pass through the file.
In 1st pass, just store 1st field (FS=: )in array i.e. a[NR]=$1
In 2nd pass, just apply the formula as below: $1=a[FNR+1]-a[FNR]-3
 

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LEARN ABOUT DEBIAN

grid-change-pass-phrase

GRID-CHANGE-PASS-(1)						  Globus Commands					      GRID-CHANGE-PASS-(1)

NAME

       grid-change-pass-phrase - Change the passphrase of a private key

SYNOPSIS

       grid-change-pass-phrase [-help] [-usage] [-version] [-versions]

       grid-change-pass-phrase [-file PRIVATE-KEY]

DESCRIPTION

       The grid-change-pass-phrase program changes the passphrase protecting a private key or PKCS12 bundle containing a private key and
       certificate. By default, grid-change-pass-phrase uses the X509_USER_KEY environment variable to locate the private key. If that is not set,
       then it looks for $HOME/.globus/userkey.pem and $HOME/.globus/usercred.p12 in succession. The path to a key can be specified by using the
       -file command-line option.

       The full set of command-line options to grid-change-pass-phrase are:

       -help, -usage
	   Display the command-line options to grid-change-pass-phrase and exit.

       -version, -versions
	   Display the version number of the grid-change-pass-phrase command. The second form includes more details.

       -file PRIVATE-KEY
	   Change the passphrase of the private key named by PRIVATE-KEY instead of the default.

EXAMPLES

       Change the passphrase of the default private key:

	   % grid-change-pass-phrase

	   Enter pass phrase for /home/juser/.globus/userkey.pem:
	   writing RSA key
	   Enter PEM pass phrase:
	   Verifying - Enter PEM pass phrase:

ENVIRONMENT VARIABLES

       The following environment variables affect the execution of grid-change-pass-phrase:

       X509_USER_KEY
	   Path to the default private key file.

AUTHOR

       University of Chicago

Globus Toolkit 5.0.1						    03/22/2010						      GRID-CHANGE-PASS-(1)
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