You may use this generic solution using awk
:
cat srch.awk
BEGIN{ FS = "[[:blank:]]*[|]" }
{
for (i=1; i<=NF; ++i) {
if (match($i, /^[_[:alnum:]]+: /) && substr($i, 1, RLENGTH-2) == fld) {
print ( substr($i, RLENGTH+1) )
next
}
}
}
Then use it as:
awk -v fld='isp' -f srch.awk file.txt
OVH Hosting Inc.
Teredo RFC4380
Teredo RFC4380
Teredo RFC4380
Teredo RFC4380
Teredo RFC4380
Teredo RFC4380
Or else:
awk -v fld='usage_type' -f srch.awk file.txt
Data Center/Web Hosting/Transit
Reserved
Search Engine Spider
Hacking
Gaming
IPS
Commercial
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