bedtools:tldr:8b38f
The command you provided is using the bedtools intersect tool, which is a powerful tool for comparing and manipulating genomic intervals in BED (Browser Extensible Data) format.
Here is the breakdown of the command:
bedtools intersect: This is the main command that calls the bedtools software and selects the intersect subcommand. It is used to identify overlapping or intersecting intervals between two BED files.
-a ${filename_1}: This specifies the first input file (a in the command) that contains genomic intervals in BED format. You need to replace ${filename_1} with the actual path or name of your first input file.
-b ${filename_2}: This specifies the second input file (b in the command) that contains genomic intervals in BED format. You need to replace ${filename_2} with the actual path or name of your second input file.
-s: This option indicates that the interval files are strand-specific. It instructs bedtools to consider strand information when determining overlaps. If omitted, the command performs strand-insensitive comparisons.
> ${path-to-output_file}: This redirects the output of the command to a specified file path. You need to replace ${path-to-output_file} with the actual path and name of the file where you want to store the output results.
In summary, this command uses bedtools intersect to compare two BED files (${filename_1} and ${filename_2}) and identify overlapping or intersecting intervals, considering strand specificity if specified. The output is then saved in the file specified by ${path-to-output_file}.