The following command can run from the shell or ssh to extract multiple files.

To unzip multiple zipped .zip, .gz, .tar.gz, bz2, or .tar.bz files:

$ for file in *.zip; do unzip "${file}"; done

To unzip multiple zipped .gz files:

$ gunzip *.gz

To unzip multiple zipped .bz2 files:

$ bunzip2 *.bz2

To extract multiple .tar.gz files:

$ for file in *.tar.gz; do tar -xzf "${file}"; done

To extract multiple .tar.bz2 files:

$ for file in *.tar.bz2; do tar -jxf "${file}"; done