Warren L Dodge <[EMAIL PROTECTED]> writes: > On the two solaris systems the following command works. > tail -1 file > On linux is complains and says to use > tail -n 1 file > Any idea what caused this?
It's because your GNU/Linux systems have <unistd.h> that claim conformance to POSIX 1003.1-2001, whereas your Solaris systems claim conformance to POSIX 1003.2-1992. The new POSIX standard disallows support for "tail -1" and head -1" (even as extensions!). [EMAIL PROTECTED] (Bob Proulx) writes: > You mean on solaris using which set of utilities? My understanding is > that you now have three to choose from there. > > /usr/bin/tail > /usr/xpg4/bin/tail > /usr/local/bin/tail # Wherever you installed the GNU version. There's also /opt/sfw/bin/gtail on Solaris 8, with the companion CD installed. (Isn't Solaris wonderful? They have everything! :-) > export _POSIX2_VERSION=199209 This will work for coreutils, but it might not work for other implementations that conform to POSIX 1003.1-2001. If the original poster wantes his scripts to be portable among both new and old systems, his best bet is stick to the compatible intersection of POSIX and widely-used platforms. Thus, he can replace "tail -1" with "sed -n '$p'", and replace "head -1" with "sed 1q". Admittedly this is a hassle in the short run, so setting _POSIX2_VERSION=199209 may be his best bet in the short run. _______________________________________________ Bug-coreutils mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-coreutils
