# sqfstar > Create a squashfs filesystem from a tar archive. > More information: . - Create a squashfs filesystem (compressed using `gzip` by default) from an uncompressed `tar` archive: `sqfstar {{filesystem.squashfs}} < {{archive.tar}}` - Create a squashfs filesystem from a `tar` archive compressed with `gzip`, and [comp]ress the filesystem using a specific algorithm: `zcat {{archive.tar.gz}} | sqfstar -comp {{gzip|lzo|lz4|xz|zstd|lzma}} {{filesystem.squashfs}}` - Create a squashfs filesystem from a `tar` archive compressed with `xz`, excluding some of the files: `xzcat {{archive.tar.xz}} | sqfstar {{filesystem.squashfs}} {{file1 file2 ...}}` - Create a squashfs filesystem from a `tar` archive compressed with `zstd`, excluding files ending with `.gz`: `zstdcat {{archive.tar.zst}} | sqfstar {{filesystem.squashfs}} "{{*.gz}}"` - Create a squashfs filesystem from a `tar` archive compressed with `lz4`, excluding files matching a regular expression: `lz4cat {{archive.tar.lz4}} | sqfstar {{filesystem.squashfs}} -regex "{{regular_expression}}"`