script for formating /proc/net files?

m4rtin · 02-16-2009, 09:01 PM

when I view for example /proc/net/tcp or /proc/net/dev files with cat or tail utility, colums are not aligned and the layout of the file is a mess. Is there some other utility which is capable of viewing those files correctly? Or should I write some kind of script for that? If yes, can it be made using shell commands or should I use perl(I am not very familiar with perl)?

wje_lq · 02-16-2009, 09:55 PM

Are you looking at these files with a monospace font, with an environment that's wide enough to keep the data from wrapping around?

Here's what I get on my system when I take care of those details, with no special handling or scripts or anything:

Code:

wally:~/monday/2$ cat /proc/net/tcp
  sl  local_address rem_address   st tx_queue rx_queue tr tm->when retrnsmt   uid  timeout inode                                                     
   0: 00000000:1770 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 9356 1 f6276d80 750 0 0 2 -1                              
   1: 00000000:0071 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 7763 1 f6276900 750 0 0 2 -1                              
   2: 0101000A:0035 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 11258 1 f688e000 750 0 0 2 -1                             
   3: 6506A8C0:0035 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 11256 1 f688e480 750 0 0 2 -1                             
   4: 0100000A:0035 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 11254 1 f688f680 750 0 0 2 -1                             
   5: 0100007F:0035 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 7795 1 f751e000 750 0 0 2 -1                              
   6: 00000000:0015 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 7761 1 f6276000 750 0 0 2 -1                              
   7: 0100007F:0277 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 8809 1 f751e900 750 0 0 2 -1                              
   8: 00000000:0017 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 7762 1 f6276480 750 0 0 2 -1                              
   9: 0100007F:03B9 00000000:0000 0A 00000000:00000000 00:00000000 00000000     0        0 7798 1 f751e480 750 0 0 2 -1                              
  10: 6506A8C0:B499 E2079642:0050 01 00000000:00000000 00:00000000 00000000  4000        0 17689 1 c8912000 74 10 32 2 -1                            
  11: 6506A8C0:DC81 164534D8:0050 01 00000000:00000000 00:00000000 00000000  4000        0 17668 1 c8912900 103 10 0 2 -1                            
  12: 0100000A:DF6E 0200000A:0017 01 00000000:00000000 00:00000000 00000000  6000        0 17311 1 e89e5200 52 10 28 2 -1                            
  13: 6506A8C0:B498 E2079642:0050 01 00000000:00000000 00:00000000 00000000  4000        0 17688 1 c8912480 73 10 28 2 -1                            
  14: 0100000A:DF6D 0200000A:0017 01 00000000:00000000 00:00000000 00000000  6000        0 17270 1 e89e4d80 51 10 2 2 -1                             
  15: 6506A8C0:DC80 164534D8:0050 01 00000000:00000000 00:00000000 00000000  4000        0 17667 1 c8913200 90 10 0 2 -1                             
wally:~/monday/2$ cat /proc/net/dev
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo:   61700    1234    0    0    0     0          0         0    61700    1234    0    0    0     0       0          0
  eth0:46359757   44488    0    0    0     0          0       272  6231385   43501    0    0    0     0       0          0
  eth1:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
wally:~/monday/2$

Everything lines up nicely, except for the stuff beyond the inodes.