join:tldr:bf12b
join: Join two files using a comma (instead of a space) as the field separator.
$ join -t ${','} ${file1} ${file2}
try on your machine
The given command is trying to join two files, file1 and file2, based on a specific delimiter.
- The command starts with "join" which is a command used to merge lines from two files based on a common field.
- The "-t ${','}" option specifies the delimiter that should be used to separate fields in the input files. In this case, the delimiter is set to a comma (',').
- "${file1}" and "${file2}" are placeholder variables that should be replaced with the actual filenames of the files you want to join.
To summarize, this command is attempting to join the lines of file1 and file2 using a comma (',') as the delimiter between fields.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.