Shell Programming and Scripting

Hello,

I am new to UNIX shell scripting but I am willing to learn :-)...

I have to use the C shell....

I have to write a script that should do the following:
- Open an input file and read it line by line.
- For each line read, I have to search for a certain pattern. If it was found then I have to ignore the following two lines and read the following line and store it for further processing. Otherwise, I will just read the following line.
- After the previously mentioned hit is found and the following desired line is read, I have to write one line to another output file that is composed of some texts from the previously read files.
- I have to do that till the end of the file.
- I have to automate the process (this is not important and can be delayed).

Please help me.

Thanks in advance.

Example of the input file:

LOADING PROGRAM VERSION 5.1-0

Cont BXX1 2006-06-03 14:49:54

ALARM HISTORY

<HIST> BXX1 MCMU-0 TRANSM 2006-06-03 10:26:56.75
** ALARM ........ RRM_BX
(0330) INCORRECT STATUS
81d 2d 00 96d 11d 0d

<HIST> BXX1 MCMU-0 TRANSM 2006-06-03 10:28:40.73
.. CANCEL ........ RRM_BX
(0330) INCORRECT STATUS
81d 2d 00 96d 11d 0d

Example of the output file:
exemmlm -n BXX1 -c "EX:CMDx=81,CMDy=2,CMDz=00:L;"
exemmlm -n BXX1 -c "EX:CMDx=81,CMDy=2,CMDz=00:L;"

An awk solution:

Code:

$ cat san.txt 
LOADING PROGRAM VERSION 5.1-0

Cont BXX1 2006-06-03 14:49:54

ALARM HISTORY

<HIST> BXX1 MCMU-0 TRANSM 2006-06-03 10:26:56.75
** ALARM ........ RRM_BX
(0330) INCORRECT STATUS
81d 2d 00 96d 11d 0d

<HIST> BXX1 MCMU-0 TRANSM 2006-06-03 10:28:40.73
.. CANCEL ........ RRM_BX
(0330) INCORRECT STATUS
81d 2d 00 96d 11d 0d

$ cat proc.awk 

BEGIN {
   i=0
   }
{
while ((  getline ) > 0)
   {
   if ( $0 ~ /<HIST> BXX1/ )
      {
      getline
      getline
      getline
      COMMAND[i]=$0
      ++i
      }
   }
}

END {
   print
   for (b=0;b<i;b++)
      printf ("exemmlm -n BXX1 -c \"EX:CMDx=%s,CMDy=%s,CMDz=%s:L;\"\n",substr(COMMAND[b],0,2),substr(COMMAND[b],5,1),substr(COMMAND[b],8,2))
}

$ awk -f proc.awk  san.txt>output

$ cat output 

exemmlm -n BXX1 -c "EX:CMDx=81,CMDy=2,CMDz=00:L;"
exemmlm -n BXX1 -c "EX:CMDx=81,CMDy=2,CMDz=00:L;"

Thanks a BUNCH for your help..but...it didnt work...it is giving the following error:
syntax error The source line is 1.
The error context is
<<< BEGIN >>> {i=0}
awk: Quitting
The source line is 1.

I really appreciate your help.

Umm , strange .
Try this sh:

Code:

$cat proc.sh

awk '
{
i=0
while ((  getline ) > 0)
   {
   if ( $0 ~ /<HIST> BXX1/ )
      {
      getline
      getline
      getline
      COMMAND[i]=$0
      ++i
      }
   }
}

END {
   print
   for (b=0;b<i;b++)
      printf ("exemmlm -n BXX1 -c \"EX:CMDx=%s,CMDy=%s,CMDz=%s:L;\"\n",substr(COMMAND[b],0,2),substr(COMMAND[b],5,1),substr(COMMAND[b],8,2))
}
'<san.txt>ouput