I have a file, file1.csv containing:
This
is
some
text.
I am using while read line to cycle through each line, e.g.:
while read line; do
echo $line
done < file1.csv
I have another file, with an identical number of lines, called file2.csv:
A
B
C
D
The data each line corresponds to data in the first file of the same line number.
file2.csv?Use another FD.
while read line; do
if ! read -u 3 line2
then
break
fi
echo "$line***$line2"
done < file1.csv 3< file2.csv
You could try with the paste utility:
$ cat one
this
is
some
text
$ cat two
1
2
3
4
$ while read a b ; do echo $a -- $b ; done < <(paste one two)
this -- 1
is -- 2
some -- 3
text -- 4
You can use the paste command:
$ paste -d, file{1,2}.csv | while IFS=, read x y; do echo "$x:$y"; done
This:A
is:B
some:C
text.:D
-d in the paste and skip the IFS=, in the while. Let whitespace be your delimiter. (Won't work if you have spaces in your data... but the above solution is broken if you have commas in your data, so same difference.)