Hi, I have a command (pfmon in IA64 system) which takes filename as a parameter. It samples the counters present in the processor at a given sampling rate and stores it into the file. This command stores lot more data than what I want. Since it stores it in column format, I can write a small awk script to parse the file to get the data which I want. The problem is that the raw file which I get from pfmon is just too big ( about 100 GB or so) and hence I run out of disk space before I can process it with my awk script. My question is there a special file in linux ( The system is RH with kernel version linux-2.4.18-e.25, I dont know the RH version number), which I can specify in the command line of pfmon and which I can read simultaneously with a pipe or something so that I can process the data as and when it generates? Thanks for the help. Sreekumar _______________________________________________ TCLUG Mailing List - Minneapolis/St. Paul, Minnesota http://www.mn-linux.org tclug-list at mn-linux.org https://mailman.real-time.com/mailman/listinfo/tclug-list