Subject: Re: search for two patterns - msg#00071

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Re: [OT] Extract a block from file

--- In sed-users@xxxxxxxxxxxxxxx, "Ruud H.G. van Tol" <rvtol@xxxx> wrote: > Toen wij gudermez kietelden, kwam er dit uit: > > > Of course we can overcome these limitations but we trade off > > readability (which already is at a premium w/ sed). > > Which is a premium: readability, or the trade off of it? <g> > > -- > Grtz, Ruud I believe it's the readability even if you understand the mechanics of 'sed'. -- Gudermez. ------------------------ Yahoo! Groups Sponsor --------------------~--> Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/dkFolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/sed-users/ <*> To unsubscribe from this group, send an email to: sed-users-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/

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Re: search for two patterns

You might try the sed t option, which branches after a successful match. As a crude example: s/off/off/ tloop1 s/on/on/ tloop2 b # this will skip to the end :loop1 Do whatever on off lines b :loop2 Do whatever on on lines b On Sun, Oct 17, 2004 at 04:16:08PM +0200, Frank Dietrich wrote: > > Hello all, > > I want to get only the pattern. > > The file statusfile contains only one line with some status > informations. The line contains 'on-line' or 'off-line' on a > variable position. I want to get as result only 'off' or 'on'. > > This line will work for 'off-line'. > > sed -n 's/^.*\(off\)-line.*/\1/p' statusfile > > How must I change it to get 'on' or 'off', with an single sed command? > > thanks > Frank > > > > > Yahoo! Groups Links > > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/dkFolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/sed-users/ <*> To unsubscribe from this group, send an email to: sed-users-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/

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Re: search for two patterns

--- Frank Dietrich <ablesoft@xxxx> wrote: > > I want to get only the pattern. > > The file statusfile contains only one line with some status > informations. The line contains 'on-line' or 'off-line' on a > variable position. I want to get as result only 'off' or 'on'. > > This line will work for 'off-line'. > > sed -n 's/^.*\(off\)-line.*/\1/p' statusfile > > How must I change it to get 'on' or 'off', with an single sed command? > it's trivial if your 'sed' supports the regex OR \| operator: sed -ne 's/.*\<\(on\|off\)-line\>.*/\1/p' yourfile or, incase you prefer the standard 'sed', then try this: sed -ne ' /onn-line/!s/.*\<o\([nf]\)\(\1\{0,1\}-line\)\>.*/o\1\2/p ' yourfile -- Gudermez ------------------------ Yahoo! Groups Sponsor --------------------~--> Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/dkFolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/sed-users/ <*> To unsubscribe from this group, send an email to: sed-users-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/

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Re: search for two patterns

Hi Gudermez, "gudermez" <sharma__r@xxxxxxxxxxx> wrote: > > The file statusfile contains only one line with some status > > informations. The line contains 'on-line' or 'off-line' on a > > variable position. I want to get as result only 'off' or 'on'. > > > > This line will work for 'off-line'. > > > > sed -n 's/^.*\(off\)-line.*/\1/p' statusfile > > > it's trivial if your 'sed' supports the regex OR \| operator: > > sed -ne 's/.*\<\(on\|off\)-line\>.*/\1/p' yourfile Thanks for your answer. I found the solution any hours after posting. In all my tries I forgot to escape the '|'. The failure was in front of the monitor. ;-) But wath the different between yours an my solution? sed -n 's/^.*\(off\|on\)-line.*/\1/p' statusfile What the '<' and '>' mean? Frank ------------------------ Yahoo! Groups Sponsor --------------------~--> $9.95 domain names from Yahoo!. Register anything. http://us.click.yahoo.com/J8kdrA/y20IAA/yQLSAA/dkFolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/sed-users/ <*> To unsubscribe from this group, send an email to: sed-users-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/