[CentOS] OT: Script Help

Tue May 21 14:17:37 UTC 2013
John Doe <jdmls at yahoo.com>

From: John Doe <jdmls at yahoo.com>

> From: James Pifer <jep at obrien-pifer.com>
>>  I have a long file that has lines like this:
>>  some text
>>  some text2
>>  CN=DATA.OU=XYZ.O=CO
>>  some text3
>>  some text4
>> 
>>  I need to change the middle line but leave the rest of the file as is 
>>  like this:
>>  some text
>>  some text2
>>  CN=XYZ_DATA.OU=XYZ.O=CO
>>  some text3
>>  some text4
> 
> IFS="."; cat file | while read L; do set $L; if [ "$1" = 
> "CN=DATA" ]; then P1=${1#CN=}; P2=${2#OU=}; echo 
> "CN=${P2}_$P1.$2.$3"; else echo $*; fi; done

Oops, if DATA means "DATA":
  IFS="."; cat file | while read L; do set $L; if [ "$1" = "CN=DATA" ]; then P=${2#OU=}; echo "CN=${P}_DATA.$2.$3"; else echo $*; fi; done

If DATA is generic:
  IFS="."; cat file | while read L; do set $L; if [ "${1%=*}" = "CN" ]; then P1=${1#CN=}; P2=${2#OU=}; echo "CN=${P2}_$P1.$2.$3"; else echo $*; fi; done

JD