# awk 'BEGIN {FS=":"; OFS="\t"; ORS="\n\n"} {print $1, $2, $3}' /etc/passwd
root x 0
daemon x 1
bin x 2
/*省略许多输出*/
postgres x 1000
vboxadd x 999
# awk 'BEGIN {print "Groad.net"}'
Groad.net
# netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'
SYN_RECV 101
CLOSE_WAIT 3
ESTABLISHED 86
FIN_WAIT1 130
FIN_WAIT2 28
CLOSING 66
TIME_WAIT 2746
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