I have a sample file with the contents:
Filesystem 512-blocks Used Available Capacity iused ifree %iused Mounted on
/dev/disk0s2 467182912 419318824 47352088 90% 52478851 5919011 90% /
devfs 419 419 0 100% 727 0 100% /dev
/dev/disk1s2 975093952 673515008 301578944 70% 84189374 37697368 69% /Volumes/Local_Storage
map -hosts 0 0 0 100% 0 0 100% /net
map auto_home 0 0 0 100% 0 0 100% /home
localhost:/l3ZTI82fIEDeEEIvUkf44A 467182912 467182912 0 100% 0 0 100% /Volumes/MobileBackups
/dev/disk2s2 1952853344 1925763856 27089488 99% 240720480 3386186 99% /Volumes/SK Backup
/dev/disk3s2 199328216 88909928 110418288 45% 11113739 13802286 45% /Volumes/Secure_Storage
/dev/disk4s2 59328216 51456432 7871784 87% 6432052 983973 87% /Volumes/Secure
/dev/disk5s2 60000000 12713448 47286552 22% 1589179 5910819 21% /Volumes/Secure_Personal
//[email protected]/Storage 4294701048 1128302984 3166398064 27% 141037871 395799758 26% /Volumes/Storage
/dev/disk6s2 200000 9952 190048 5% 1242 23756 5% /Volumes/VAULT
//[email protected]/chris.s 467182912 437521864 29661048 94% 54690231 3707631 94% /Volumes/chris.schmitz
//chris@hq-srv03/NET 167563256 50264576 117298680 30% 0 18446744073709551615 0% /Volumes/NETLOGON
And I'm working on pulling out just the ip addresses and host names from the file. Right now I'm working on grabbing the ips using the following pattern:
cat dfsample.txt | awk '/@/' | sed -E 's/.*([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}).*/\1/g'
With unexpected results:
//[email protected]/Storage 4294701048 1128302984 3166398064 27% 141037871 395799758 26% /Volumes/Storage
2.20.1.76
//chris@hq-srv03/NET 167563256 50264576 117298680 30% 0 18446744073709551615 0% /Volumes/NETLOGON
My expectation for the sed section was that the .* before and after the pattern defined in the parens would select the entire line and when I substituted the line for the pattern found within the parens using the \1 it would substitute the entire line with the found pattern leaving only the ip address.
For some reason the first two digits of my ip address is getting cut off. When I try the pattern in the parens in sublime it finds the ip without an issue. What is it that I'm missing?
sed -nr 's,^//[^@/]*@([^/]*)/.*,\1,p'
gets both hostnames and IP addresses and won't be fooled by "interesting" volume names.
If your sed doesn't have the r flag, the escaping isn't too ugly on this one, I probably should have given it just this way:
sed -n 's,^//[^@/]*@\([^/]*\)/.*,\1,p'
(edit: [^@] -> [^@/] safety play)
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