On 12/21/07, Jochen Schulz <[EMAIL PROTECTED]> wrote: > roberto: > > > > a runnig program logs its output to a file and i'd like to read this > > log file "while" it is being written and updated by the program, and > > > > possibly searching in it for patterns and so on > > When you want to search for specific patterns, you can either > > $ tail -f /var/log/syslog | grep foobar > > That way you only see lines containing your pattern. > > Or you use "less /var/log/syslog", then search ('/') for your pattern > and then press 'F' ("Follow changes") which gives you a tail-like > display of the file. The difference is that less will highlight matches > but still display all the rest. > > BTW, less has some really handy functions, like '-S' to toggle line > wrapping and '-N' to toggle the display of line numbers. Just press 'h' > to get an overview. And it can display colors, which grep can do, too. > > J. thank you for the very extended reply i'll let you know about the outcome
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