我有一个文本文件。
ifile.txt
x y z t value
1 1 5 01hr01Jan2018 3
1 1 5 02hr01Jan2018 3.1
1 1 5 03hr01Jan2018 3.2
1 3.4 3 01hr01Jan2018 4.1
1 3.4 3 02hr01Jan2018 6.1
1 3.4 3 03hr01Jan2018 1.1
1 4.2 6 01hr01Jan2018 6.33
1 4.2 6 02hr01Jan2018 8.33
1 4.2 6 03hr01Jan2018 5.33
3.4 1 2 01hr01Jan2018 3.5
3.4 1 2 02hr01Jan2018 5.65
3.4 1 2 03hr01Jan2018 3.66
3.4 3.4 4 01hr01Jan2018 6.32
3.4 3.4 4 02hr01Jan2018 9.32
3.4 3.4 4 03hr01Jan2018 12.32
3.4 4.2 8.1 01hr01Jan2018 7.43
3.4 4.2 8.1 02hr01Jan2018 7.93
3.4 4.2 8.1 03hr01Jan2018 5.43
4.2 1 3.4 01hr01Jan2018 6.12
4.2 1 3.4 02hr01Jan2018 7.15
4.2 1 3.4 03hr01Jan2018 9.12
4.2 3.4 5.5 01hr01Jan2018 2.2
4.2 3.4 5.5 02hr01Jan2018 3.42
4.2 3.4 5.5 03hr01Jan2018 3.21
4.2 4.2 6.2 01hr01Jan2018 1.3
4.2 4.2 6.2 02hr01Jan2018 3.4
4.2 4.2 6.2 03hr01Jan2018 1
解释一下。每个坐标(x,y)有一个Z值和三个时间值。这些空格不是制表符。它们是一连串的空格。
我想把t列格式化为行,然后转换为csv文件。我的预期输出是这样的。
ofile.txt
x,y,z,01hr01Jan2018,02hr01Jan2018,03hr01Jan2018
1,1,5,3,3.1,3.2
1,3.4,3,4.1,6.1,1.1
1,4.2,6,6.33,8.33,5.33
3.4,1,2,3.5,5.65,3.66
3.4,3.4,4,6.32,9.32,12.32
3.4,4.2,8.1,7.43,7.93,5.43
4.2,1,3.4,6.12,7.15,9.12
4.2,3.4,5.5,2.2,3.42,3.21
4.2,4.2,6.2,1.3,3.4,1
我正在尝试用以下方法,但还是没有得到想要的输出。我的脚本在最后打印了一些额外的逗号(,)。
我的算法和脚本是。
#Step1:- Split into two files: one with x,y,z (0001.txt) and
# another with t,value (0002.txt).
awk '{n=3; for (i=1;i<=n;i++) printf "%s ", $i; print "";}' ifile.txt > 0001.txt
awk '{n=5; for (i=4;i<=n;i++) printf "%s ", $i; print "";}' ifile.txt > 0002.txt
#Setp2:- In 0001.txt: Delete the repetition rows.
awk '!seen[$1,$2,$3]++' 0001.txt > 00011.txt
#Step3:- In 0002.txt: Delete the first row. For each 3 rows in t-column,
# write the value-column as rows. Add the t-row at top
# this is very manual. I am wondering for some command
grep -E "^[0-9].*" 0002.txt > 0003.txt
awk -v n=3 '{ row = row $2 " "; if (NR % n == 0) { print row; row = "" } }' 0003.txt > 0004.txt
(echo "01hr01Jan2018,02hr01Jan2018,03hr01Jan2018";cat 0004.txt) > 00022.txt
#Step4:- Paste output of two and convert to csv.
paste 00011.txt 00022.txt > 0005.txt
cat 0005.txt | tr -s '[:blank:]' ',' > ofile.txt