I'm using awk to swap fields in a filename using two different field separators. I want to know if it's possible to preserve both separators, '/' and '_', in the correct positions in the output.
Example:
I want to change this:
/path/to/example_file_123.txt
into this:
/path/to/file_example_123.txt
I've tried:
awk -F "[/_]" '{ t=$3; $3=$4; $4=t;print}' file.txt
but the field separators are missing from the output:
path to file example 123.txt
I've tried preserving the field separators:
awk -F "[/_]" '{t=$3; $3=$4; $4=t; OFS=FS; print}' file.txt
but I get this:
[/_]path[/_]to[/_]file[/_]example[/_]123.txt
Is there a way of preserving the correct original field separator in awk when you're dealing multiple separators?
$ cat /tmp/1
/path/to/example_file_123.txt
/path/to/example_file_345.txt
$ awk -F'_' '{split($1,a,".*/"); gsub(a[2],"",$1);print $1$2"_"a[2]"_"$3}' /tmp/1
/path/to/file_example_123.txt
/path/to/file_example_345.txt