【求助】请教出现这个错误是什么原因呢?

【求助】请教出现这个错误是什么原因呢?

tail: 无法打开 “+5” 读取数据: 没有那个文件或目录
??? Error using ==> run
Trouble reading number from file (row 1, field 1) ==> ==> modispm1.pfc <==\n      
老大
你的源程序?      
[root@localhost Mfiles_guan]# tail +5 modispm1.pfc > pfc
tail: 无法打开 “+5” 读取数据: 没有那个文件或目录
[root@localhost Mfiles_guan]# tail +5 modispm1.pfc
tail: 无法打开 “+5” 读取数据: 没有那个文件或目录
==> modispm1.pfc <==
27 1474.2620 0.38164E+05 0.21211E+04 0.18601 0.99956
28 1361.6265 0.30068E+05 0.19591E+04 0.20785 0.99948
29 1169.6256 0.19058E+05 0.16828E+04 0.16749 0.99953
30 1028.7395 0.12967E+05 0.14801E+04 0.08191 0.99974
31 907.6813 0.89069E+04 0.13059E+04 0.13196 0.99954
32 830.8411 0.68310E+04 0.11954E+04 0.06977 0.99973
33 748.2977 0.49906E+04 0.10766E+04 0.02062 0.99991
34 730.7765 0.46482E+04 0.10514E+04 0.02258 0.99990
35 718.2094 0.44125E+04 0.10333E+04 0.01912 0.99992
36 703.5007 0.41469E+04 0.10122E+04 0.01793 0.99992
其中modispm1.pfc 的内容为:
PLANCK-FUNCTION CONSTANTS FOR MODIS [EOS-PM1 = AQUA]

CHANNEL CENT-WN FK1 FK2 BC1 BC2

20 2647.4089 0.22100E+06 0.38090E+04 0.48007 0.99934
21 2511.7603 0.18874E+06 0.36138E+04 0.09376 0.99986
22 2517.9084 0.19013E+06 0.36227E+04 0.09413 0.99986
23 2462.4417 0.17784E+06 0.35429E+04 0.08690 0.99987
24 2248.2957 0.13536E+06 0.32348E+04 0.07891 0.99987
25 2209.5464 0.12848E+06 0.31790E+04 0.07567 0.99988
26 7272.8174 .45818E+07 .10464E+05 .25447 .99987
27 1474.2620 0.38164E+05 0.21211E+04 0.18601 0.99956
28 1361.6265 0.30068E+05 0.19591E+04 0.20785 0.99948
29 1169.6256 0.19058E+05 0.16828E+04 0.16749 0.99953
30 1028.7395 0.12967E+05 0.14801E+04 0.08191 0.99974
31 907.6813 0.89069E+04 0.13059E+04 0.13196 0.99954
32 830.8411 0.68310E+04 0.11954E+04 0.06977 0.99973
33 748.2977 0.49906E+04 0.10766E+04 0.02062 0.99991
34 730.7765 0.46482E+04 0.10514E+04 0.02258 0.99990
35 718.2094 0.44125E+04 0.10333E+04 0.01912 0.99992
36 703.5007 0.41469E+04 0.10122E+04 0.01793 0.99992


为什么只是显示后面10行,而不是从第5行开始显示呢?      
复制内容到剪贴板
代码:
[color=blue]-(dearvoid@LinuxEden:tty3)-(~/tmp)-
[2121 0] # [/color]cat file
1
2
3
4
5
[color=blue]-(dearvoid@LinuxEden:tty3)-(~/tmp)-
[2121 0] # [/color]tail +3 file
3
4
5
[color=blue]-(dearvoid@LinuxEden:tty3)-(~/tmp)-
[2121 0] # [/color]tail --version
tail (GNU coreutils) 5.93
Copyright (C) 2005 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

Written by Paul Rubin, David MacKenzie, Ian Lance Taylor and Jim Meyering.
[color=blue]-(dearvoid@LinuxEden:tty3)-(~/tmp)-
[2121 0] # [/color]
      
tail (GNU coreutils) 5.96

tail: Warning: "+number" syntax is deprecated, please use "-n +number"