1、合併多天gamit的o文件
cat *o????a.* >step1.txt
2、提取基線長信息
grep 'X X' step1.txt|gawk '{print $1,$16,$18}' >step2.txt
3、根據基線名排序
sort step2.txt >step3.txt
4、把空格替換爲逗號，方便計算重複率程序處理
sed 's/ /,/'g step3.txt > step4.txt
5、然後利用自編的軟件（geodesytools）基線重複性計算，
最終結果如下：
A033_GMSD,1176008.1036,0.0028
A033_GMSD,1176008.1040,0.0031
A033_GMSD,1176008.1041,0.0030
A033_GMSD,1176008.1044,0.0028
A033_GMSD,1176008.1046,0.0029
A033_GMSD,1176008.1046,0.0030
A033_GMSD,1176008.1062,0.0032
A033_GMSD,1176008.1079,0.0034
A033_KUNM,1695123.7931,0.0040
A033_KUNM,1695123.7944,0.0041
A033_KUNM,1695123.7947,0.0039
A033_KUNM,1695123.7953,0.0039
A033_KUNM,1695123.7953,0.0041
A033_KUNM,1695123.7961,0.0040
第一列爲基線名(相同的基線列在一起),
第二列爲基線長(單位m)，
第三列爲基線長誤差(單位m)
經基線重複率計算後得
A033_GMSD, 1176008.10479296, 0.00123866390486845,1.05327837437525E-09
A033_KUNM, 1695123.79590439, 0.00204319966805489,1.20533949968226E-09
A033_SHAO, 480733.898299702, 0.00053035414908655,1.10321770726456E-09
第一列爲基線名，
第二列爲加權基線長(單位m)，
第三列爲絕對基線重複性(單位m)，
第四列爲相對基線重複性(單位m)