[awk]练习1

#!/bin/awk -f # show_user.awk ------ show /proc/tpn/t_userflow### {必须和BEGIN在一行，否则会BEGIN模式会匹配空的ACTION，从而报错BEGIN {     FS = ";"    OFS="\t"    printf "user_id   user_ip    up_bps    down_bps    last_bytes[0]    last_bytes[1]    last_time    gid    max_tcp_conn    max_udp_conn    nr_tcp    nr_udp    user_type    total_conn    login_time    audit_status\n"}{    print $1,$2x,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$16,$17,$18}