从文件标题匹配的以空格分隔的文件中删除列 [英] Delete columns from space delimited file where file header matches
本文介绍了从文件标题匹配的以空格分隔的文件中删除列的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个以空格分隔的输入文本文件.我想使用sed或awk删除列标题为大小的列.
I have a space delimited input text file. I would like to delete columns where the column header is size using sed or awk.
输入文件:
id quantity colour shape size colour shape size colour shape size
1 10 blue square 10 red triangle 8 pink circle 3
2 12 yellow pentagon 3 orange rectangle 9 purple oval 6
所需的输出:
id quantity colour shape colour shape colour shape
1 10 blue square red triangle pink circle
2 12 yellow pentagon orange rectangle purple oval
推荐答案
awk
命令
awk '
NR==1{
for(i=1;i<=NF;i++)
if($i!="size")
cols[i]
}
{
for(i=1;i<=NF;i++)
if(i in cols)
printf "%s ",$i
printf "\n"
}' input > output
精美打印
column -t -s ' ' output
结果
id quantity colour shape colour shape colour shape
1 10 blue square red triangle pink circle
2 12 yellow pentagon orange rectangle purple oval
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