Hi, I am struggling with sed and gawk but I guess that it'd be possible to employ vim in the command line (it's to make a script that will be automatically launched every 24 hours) but I don't have any idea of how to do it...
How could I select the blocks (see file ahead) of a text file (say SSSS.txt) in which some particular words appear? Imagine that I want to keep the blocks containing words like "black", "supermassive", "red", "intermediate", "relativistic"... and delete the rest of blocks (and also the header and bottom of the file) What would be the command line with vim? (or are there other possibilities?) I would also like how to reemplace the astro-ph/0604565 with <a href=" http://xxx.lanl.gov/pdf/astro-ph/0604565</a> for all numbers, not only for 0604565 ... any hint??? thanks! Remark: What I call header is the part from " arXiv.org" at the beginning of the file and until "received", and the bottom is from "For subscribe" until "(Access key information)". What I call a "block" is from the "astro-ph/number", Title, Authors and the tex block arXiv.org > astro-ph Search for (Help | Advanced search) _______________ [__________] [ Go! ] Astrophysics astro-ph new abstracts, Thu, 27 Apr 06 00:00:08 GMT 0604527 -- 0604550 received astro-ph/0604527 : <b>Title</b> Constraints on the Nature of Jets from kpc Scale X-ray Data <b>Autors</b> D. E. Harris (SAO), H. Krawczynski (Washington University in St. Louis) Comments: 5 pages; 3 figures; latex. This paper is based on a poster contribution to the meeting, ``Triggering Relativistic Jets'', held in Cozumel, MX at the end of March 2005 and will be published via a CD distributed with a special issue of Revista Mexicana de Astronomia y Astrofisica, Serie de Conferencias, eds. W.H. Lee & E. Ramirez-Ruiz, 2006 Motivated by the large number of jets detected by the Chandra X-ray Observatory, and by the inverse Compton X-ray emission model (IC/CMB) for relativistic jets, we revisit two basic questions: ``If the medium that carries the jet's energy consists of hot electrons, can we use the physical length of the jet to constrain the maximum electron energy?'' and ``Why do jets have knots?'' Based on the two non-thermal emission processes for X-rays from jets, we consider constraints on the jet medium and other properties from these two simple questions. We argue that hot pairs cannot be the dominant constituent of the medium responsible for the jet's momentum flux and that some mechanisms for producing fluctuating brightness along jets (rather than a monotonically decreasing intensity) are precluded by observed jet morphologies. astro-ph/0604528 : <b>Title</b> Minimal Noncanonical Cosmologies <b>Autors</b> Gabriela Barenboim, Joseph D. Lykken Comments: 20 pages, 5 figures, 3 tables We demonstrate how much it is possible to deviate from the standard cosmological paradigm of inflation-assisted LambdaCDM, keeping within current observational constraints, and without adding to or modifying any theoretical assumptions. We show that within a minimal framework there are many new possibilities, some of them wildly different from the standard picture. We present three illustrative examples of new models, described phenomenologically by a noncanonical scalar field coupled to radiation and matter. These models have interesting implications for inflation, quintessence, reheating, electroweak baryogenesis, and the relic densities of WIMPs and other exotics. For subscribe options to combined physics archives, e-mail To: [EMAIL PROTECTED], Subject: subscribe ------- For help on viewing and making submissions, see this http URL For a list of archive mirror sites, see this http URL ------- Third-party submissions cause excessive problems. Author self-submissions are exceedingly preferred. E-mail submissions have been discontinued in favor of better support for Web submissions. See this http URL Links to: arXiv, form interface, /find, astro-ph, /recent, /0604, /abs, help (Access key information)
