[R] Adding rows to column

[amb1networks]

I'm new to R. 
I'm extracting important columns from single table using following code:

File2<-"file.txt"
table2<- read.delim(File2, skip=19, sep=";", header=F, na.strings=NA,
fill=T)
#extracting column 7 where rows match "ID"
col1<- table2[grep("ID", table2[,1]),7]
#similarly extracting column 9,11,13,15
col2<- table2[grep("ID", table2[,1]),9]
col3<- table2[grep("ID", table2[,1]),11]
col4<- table2[grep("ID", table2[,1]),13]
col5<- table2[grep("ID", table2[,1]),15]

there are also some other single columns I extracted from other file. Now I
want to combine all these single columns into a single table with
corresponding headers. Any hint on how that can be done? Thanks.

i.e file3.txt
col1 col2 col3 col4 col5

Regards,

Anand



Now how can I combine 

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