Re: text substitution in a colum
| Newsgroups | gmane.editors.sed.user |
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| Message-ID | <1797069244.560530.1353957602398.JavaMail.root@sz0115a.emeryville.ca.mail.comcast.net> |
Assuming your file name is textfile, this should work: sed "s/^\([^ ]*[ ][^ ]*[ ]\)\([0-9].*\)$/\1MY_\2/" textfile Between each set of brackets is a single tab character. It says to replace any pattern that begins the line with any number of not-tab, followed by a single tab, followed by and number of not-tab, followed by a tab, followed by a digit, with the match found through the 2nd tab, MY_ and the match for rest of line. This is probab ly better solved by using awk. ----- Original Message ----- From: "MOKRANI Rachid" <[email protected]> To: [email protected] Sent: Monday, November 26, 2012 7:05:49 AM Subject: text substitution in a colum Hi, This is my firts port. I have a file with colum like this. Title1 Title2 Title3 Title4 AA B 66 D BB DS 7 TT VS FDSE 53 TGF BG F 5 GF I would like to have with a sed command the following result. Add the character MY_ before all numbers in the colum number 3 and preserve the title "Title3". All the colums are seaprate by a tab. Title1 Title2 Title3 Title4 AA B MY_66 D BB DS MY_7 TT VS FDSE MY_53 TGF BG F MY_5 GF Many thanks for your help/example. Regards. __________________________ Avant d'imprimer, pensez à l'environnement ! Please consider the environment before printing ! Ce message et toutes ses pièces jointes sont confidentiels et établis à l'intention exclusive de ses destinataires. Toute utilisation non conforme à sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. IFP Energies nouvelles décline toute responsabilité au titre de ce message. This message and any attachments are confidential and intended solely for the addressees. Any unauthorised use or dissemination is prohibited. IFP Energies nouvelles should not be liable for this message. __________________________ [Non-text portions of this message have been removed] ------------------------------------ -- Yahoo! Groups Links [Non-text portions of this message have been removed]