[Perl-unix-users] Reading Unix's top command
Title: Reading Unix's top command Hi, In order to get an email advising me that a process is using too much %cpu, i wanted to be able to redirect the output of the Unix top command into a text file, then use regular expressions to get the data i need. However, redirecting top's output into a file, ends up being one long line with a lot of control-M characters and other funny characters like these: 1 running^M^[[BCpu states:^M^[[BCPU Is there a way to parse the file, as you would go through a normal text file. Thanks Kareem Galal Unix Systems Administrator Financial Network Services. +61 2 9310 9895
Re: [Perl-unix-users] Reading Unix's top command
[EMAIL PROTECTED] wrote: > Hi, > > In order to get an email advising me that a process is using too much > %cpu, i wanted to be able to redirect the output of the Unix top command > into a text file, then use regular expressions to get the data i need. > > However, redirecting top's output into a file, ends up being one long > line with a lot of control-M characters and other funny characters like > these: > > 1 running^M^[[BCpu states:^M^[[BCPU > > Is there a way to parse the file, as you would go through a normal text > file. You could just convert the ^M (\r) to newlines and then you can remove the escape sequences if needed or just work around them. tr/\r/\n/; or s/\r/\n/gs; -- ,-/- __ _ _ $Bill LuebkertMailto:[EMAIL PROTECTED] (_/ / )// // DBE CollectiblesMailto:[EMAIL PROTECTED] / ) /--< o // // Castle of Medieval Myth & Magic http://www.todbe.com/ -/-' /___/_<_http://dbecoll.tripod.com/ (My Perl/Lakers stuff) ___ Perl-Unix-Users mailing list [EMAIL PROTECTED] To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
RE: [Perl-unix-users] Reading Unix's top command
Title: RE: [Perl-unix-users] Reading Unix's top command Thanks for the hint Bill, that has put the output file into some sort of readable format now. Do you know what the following corresponds to, so i can get rid of it as well: ^[[B thanks Kareem -Original Message- From: $Bill Luebkert [mailto:[EMAIL PROTECTED]] Sent: Thursday, 2 October 2003 12:15 PM To: Kareem Galal Cc: [EMAIL PROTECTED] Subject: Re: [Perl-unix-users] Reading Unix's top command [EMAIL PROTECTED] wrote: > Hi, > > In order to get an email advising me that a process is using too much > %cpu, i wanted to be able to redirect the output of the Unix top command > into a text file, then use regular expressions to get the data i need. > > However, redirecting top's output into a file, ends up being one long > line with a lot of control-M characters and other funny characters like > these: > > 1 running^M^[[BCpu states:^M^[[BCPU > > Is there a way to parse the file, as you would go through a normal text > file. You could just convert the ^M (\r) to newlines and then you can remove the escape sequences if needed or just work around them. tr/\r/\n/; or s/\r/\n/gs; -- ,-/- __ _ _ $Bill Luebkert Mailto:[EMAIL PROTECTED] (_/ / ) // // DBE Collectibles Mailto:[EMAIL PROTECTED] / ) /--< o // // Castle of Medieval Myth & Magic http://www.todbe.com/ -/-' /___/_<_http://dbecoll.tripod.com/ (My Perl/Lakers stuff)
Re: [Perl-unix-users] Reading Unix's top command
[EMAIL PROTECTED] wrote: > Thanks for the hint Bill, that has put the output file into some sort of > readable format now. > > Do you know what the following corresponds to, so i can get rid of it as > well: > > ^[[B That's just a terminal sequence to position the cursor. Do a search for ANSI terminal escape sequences to get a list. ESC[PnB Cursor Down: Moves the cursor down by the specified number of lines without changing columns. If the cursor is already on the bottom line, ANSI.SYS ignores this sequence. > -Original Message- > From: $Bill Luebkert [mailto:[EMAIL PROTECTED] > Sent: Thursday, 2 October 2003 12:15 PM > To: Kareem Galal > Cc: [EMAIL PROTECTED] > Subject: Re: [Perl-unix-users] Reading Unix's top command > > > [EMAIL PROTECTED] wrote: >> Hi, >> >> In order to get an email advising me that a process is using too much >> %cpu, i wanted to be able to redirect the output of the Unix top command >> into a text file, then use regular expressions to get the data i need. >> >> However, redirecting top's output into a file, ends up being one long >> line with a lot of control-M characters and other funny characters like >> these: >> >> 1 running^M^[[BCpu states:^M^[[BCPU >> >> Is there a way to parse the file, as you would go through a normal text >> file. > > You could just convert the ^M (\r) to newlines and then you can remove > the escape sequences if needed or just work around them. > > tr/\r/\n/; > or > s/\r/\n/gs; -- ,-/- __ _ _ $Bill LuebkertMailto:[EMAIL PROTECTED] (_/ / )// // DBE CollectiblesMailto:[EMAIL PROTECTED] / ) /--< o // // Castle of Medieval Myth & Magic http://www.todbe.com/ -/-' /___/_<_http://dbecoll.tripod.com/ (My Perl/Lakers stuff) ___ Perl-Unix-Users mailing list [EMAIL PROTECTED] To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
