Re: FW: +N option in tail command
On Wed, 11 Nov 2009, נחשון ישורון/Nachshon Yeshurun wrote: Man pages for the tail command shows the ability to use the +N option. Yet, attempting it on Ubuntu 9.10 results in an error. Is this a bug? Not a bug. From man pages: -n, --lines=N output the last N lines, instead of the last 10; or use +N to output lines starting with the Nth Attempting the command: nachs...@nachshon-ubuntu-vm:~/temp$ tail +5 /etc/passwd tail: cannot open `+5' for reading: No such file or directory The manpage syntax should be read as $ tail -n +5 or $ tail --lines=+5 Regarding the bare "tail +5" and the issues surrounding this usage please see: http://www.gnu.org/software/coreutils/faq/coreutils-faq.html#Old-tail-plus-N-syntax-now-fails Cheers, Phil
Re: FW: +N option in tail command
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 According to נחשון ישורון/Nachshon Yeshurun on 11/11/2009 12:11 AM: > Hello > > Man pages for the tail command shows the ability to use the +N option. No, the man pages mention the ability to use the option -n+N. In fact, because that was so confusing, it has recently been changed. If you were to upgrade to coreutils 8.0, you'd see this instead: -n, --lines=Koutput the last K lines, instead of the last 10; or use -n +K to output lines starting with the Kth to try to reduce the confusion between the option (-n) and the argument to the option (+K). > Is this a bug? No. And it is a FAQ: http://www.gnu.org/software/coreutils/faq/coreutils-faq.html#Old-tail-plus-N-syntax-now-fails - -- Don't work too hard, make some time for fun as well! Eric Blake e...@byu.net -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkr6tacACgkQ84KuGfSFAYBmVQCfcnhDNfwVaDc3YO7Y2ky0WVUf ZIQAnREALS8rnmCkDNJM7JSvjc4vhOz+ =gcyd -END PGP SIGNATURE-
FW: +N option in tail command
Hello Man pages for the tail command shows the ability to use the +N option. Yet, attempting it on Ubuntu 9.10 results in an error. Is this a bug? >From man pages: -n, --lines=N output the last N lines, instead of the last 10; or use +N to output lines starting with the Nth Attempting the command: nachs...@nachshon-ubuntu-vm:~/temp$ tail +5 /etc/passwd tail: cannot open `+5' for reading: No such file or directory ==> /etc/passwd <== avahi-autoipd:x:104:110:Avahi autoip daemon,,,:/var/lib/avahi-autoipd:/bin/false avahi:x:105:111:Avahi mDNS daemon,,,:/var/run/avahi-daemon:/bin/false couchdb:x:106:113:CouchDB Administrator,,,:/var/lib/couchdb:/bin/bash haldaemon:x:107:114:Hardware abstraction layer,,,:/var/run/hald:/bin/false speech-dispatcher:x:108:29:Speech Dispatcher,,,:/var/run/speech-dispatcher:/bin/sh kernoops:x:109:65534:Kernel Oops Tracking Daemon,,,:/:/bin/false saned:x:110:116::/home/saned:/bin/false pulse:x:111:117:PulseAudio daemon,,,:/var/run/pulse:/bin/false gdm:x:112:119:Gnome Display Manager:/var/lib/gdm:/bin/false nachshon:x:1000:1000:Nachshon,,,:/home/nachshon:/bin/bash
