?? tdata.awk
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# program to produce loran tdata statistics from clockstats files## usage: awk -f tdata.awk clockstats## format of input record (missing replaced by -40.0)# 49228 36.852 127.127.10.1 93:241:00:00:20.812 LORAN TDATA# M OK 0 0 1169.14 -7.4 3.16E-07 .424# W CV 0 0 3329.30 -16.4 1.81E-06 # X OK 0 0 1737.19 -10.5 3.44E-07 .358# Y OK 0 0 2182.07 -9.0 4.41E-07 .218## format of output record (time in nanoseconds, signal values in dB)# MJD sec time M W X Y Z# 49228 36.852 175.0 -7.4 -16.4 -10.5 -9.0## select LORAN TDATA records with valid format{ if (NF >= 7 && $6 == "TDATA") { m = w = x = y = z = -40.0 for (i = 7; i < NF - 5; i++) { if ($i == "M" && $(i+1) == "OK") { i += 5 m = $i } else if ($i == "W" && $(i+1) == "OK") { i += 5 w = $i } else if ($i == "X" && $(i+1) == "OK") { i += 5 x = $i } else if ($i == "Y" && $(i+1) == "OK") { i += 5 y = $i } else if ($i == "Z" && $(i+1) == "OK") { i += 5 z = $i } } printf "%5s %9.3f %6.1f %6.1f %6.1f %6.1f %6.1f\n", $1, $2, m, w, x, y, z }}?? 快捷鍵說明
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