Are network cards and IP addresses a one-one map?
This is what I tried:
[demo@ ~]# ll /usr/local/apache2/logs/|xargs |du -hm -
du: cannot access `-': No such file or directory
I want to see the amount of space each file occupies in m unit.
How to do it the correct way?
find . -name "*.[hc]|*.cc"
The above doesn't work,why?
UPDATE
How do I find these 3 kinds of files with a single pattern?
An application may be binding multiple sockets to a specific port,how can I get those sockets command line?
Here's the output of cat /proc/cpuinfo:
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : Quad-Core AMD Opteron(tm) Processor 2350 HE
stepping : 3
cpu MHz : 1994.998
cache size : 512 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu de tsc msr pae cx8 apic cmov pat clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow constant_tsc rep_good pni cx16 popcnt lahf_lm cmp_legacy extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
bogomips : 4000.86
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : Quad-Core AMD Opteron(tm) Processor 2350 HE
stepping : 3
cpu MHz : 1994.998
cache size : 512 KB
physical id : 0
siblings : 1
core id : 1
cpu cores : 1
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu de tsc msr pae cx8 apic cmov pat clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow constant_tsc rep_good pni cx16 popcnt lahf_lm cmp_legacy extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
bogomips : 4000.86
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : Quad-Core AMD Opteron(tm) Processor 2350 HE
stepping : 3
cpu MHz : 1994.998
cache size : 512 KB
physical id : 0
siblings : 1
core id : 1
cpu cores : 1
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu de tsc msr pae cx8 apic cmov pat clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow constant_tsc rep_good pni cx16 popcnt lahf_lm cmp_legacy extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
bogomips : 4000.86
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : Quad-Core AMD Opteron(tm) Processor 2350 HE
stepping : 3
cpu MHz : 1994.998
cache size : 512 KB
physical id : 0
siblings : 1
core id : 1
cpu cores : 1
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu de tsc msr pae cx8 apic cmov pat clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow constant_tsc rep_good pni cx16 popcnt lahf_lm cmp_legacy extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
bogomips : 4000.86
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
Why 4 processors are all with the id 0 (processor : 0)?
With apache ,I just put my binary under cgi-bin,how about nginx?
Does it support cgi at all?
tcp 0 0 219.155.32.195:8888 221.137.227.51:5943 TIME_WAIT timewait (58.45/0/0)
tcp 0 0 219.155.32.195:8888 221.137.227.51:5936 TIME_WAIT timewait (59.36/0/0)
tcp 0 2944 219.155.32.195:8888 221.137.227.51:5937 FIN_WAIT1 on (0.35/0/0)
Especially for the 3rd row,what does 0 , FIN_WAIT1, on and (0.35/0/0) mean respectively?
Currently I can only copy a single .tar file. But how can I copy directories recursively with scp?
I know there're ethernet,token ring,FDDI ,etc protocat the link layer,
but how to know the exact protocol used to perform a specific task,like browsing a web page?
[root@localhost /]# ( ./address_to_char;cat) | ./overflow
How does ( ./address_to_char;cat) work here?
What's different from ./address_to_char|./overflow?
$ hd test.bin
00000000 e8 06 00 00 00 74 65 73 74 0a 00 b8 04 00 00 00 |.....test.......|
00000010 bb 01 00 00 00 59 ba 05 00 00 00 cd 80 c3 |.....Y........|
hd is supposed to be able to read hex,but how to install it?
Here's what I tried:
$# yum install hd
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* addons: mirror01.idc.hinet.net
* base: mirror01.idc.hinet.net
* epel: mirror.bjtu.edu.cn
* extras: mirror01.idc.hinet.net
* updates: mirror01.idc.hinet.net
Setting up Install Process
No package hd available.
Nothing to do
If I upgrade the kernel,will old binaries use new version of .so or still the old version?
UPDATE
Why kernel has nothing to do with .so?