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# 1  
Old 09-08-2010
inconsistent tail command on different linux versions!
Hi,

I had few scripts which were running fine on linux:
Code:
uname -a
Linux ######### 2.6.9-89.ELsmp #1 SMP Mon Apr 20 10:33:05 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux

from some front end application. Recently there was a migration of this application on some other linux m/c:
Code:
 
uname -a
Linux #########  2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux

after which scripts having code lines as follows fails!!

Code:
 
cat <file name> | tail +2
tail: cannot open `+2' for reading: No such file or directory

I don't know why this is happening. Can anybody please suggest?

-dips
Last edited by dips_ag; 09-08-2010 at 09:27 AM.. Reason: changed the title
# 2  
Old 09-08-2010
cat <file name> | tail -2
# 3  
Old 09-08-2010
tail with + option is not available on every linux/unix,


use
Code:
sed 1d

instead
# 4  
Old 09-08-2010
Per POSIX:
The plus sign is obsolescent and was supported only for wide character applications.

You have a newer kernel, along with a newer version of GNU coreutils, it is interpreting the +2 as a file name since it thinks that options only begin with the "-" character.

Try:
Code:
tail -n +2

This User Gave Thanks to jim mcnamara For This Post:
dips_ag
# 5  
Old 09-08-2010
Jim,
Thanks for explanation.
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