sqfstar:tldr:c503c

sqfstar: Create a squashfs filesystem from a tar archive compressed with `lz4`, excluding files matching a regular expression.

lz4cat

$ lz4cat ${archive-tar-lz4} | sqfstar ${filesystem-squashfs} -regex "${regular_expression}"

try on your machine

This command is a combination of two separate commands connected by a pipe symbol (|). Let's break it down step by step:

lz4cat ${archive-tar-lz4}: This command uses the lz4cat tool to decompress the contents of an LZ4 compressed archive file specified by the ${archive-tar-lz4} variable. lz4cat takes the compressed file as input and outputs the uncompressed data.
|: The pipe symbol (|) is used to redirect the output of the previous command to the input of the next command. In this case, it connects the output of lz4cat to the input of the next command.
sqfstar ${filesystem-squashfs} -regex "${regular_expression}": This command uses the sqfstar tool to extract files from a SquashFS filesystem specified by the ${filesystem-squashfs} variable. The -regex option allows you to specify a regular expression pattern to match files within the SquashFS filesystem. The ${regular_expression} variable contains the specific regular expression pattern to use.

In summary, this command decompresses an LZ4 compressed archive file using lz4cat and then uses sqfstar to extract files from a SquashFS filesystem based on a given regular expression pattern.

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.

back to the lz4cat tool