7z x archive.7z

7z a -t7z archive.7z *.txt

7z d archive.7z *.bak -r 

7z e archive.7z

7z l archive.7z

7z u archive.7z *.txt

7z x archive.7z -o/full_path

Here I show how you can specify the precise archive type you want to create. Note that you can specify any filename you want for any type. But some extensions are recommended.

Switch -t7z:
Format: 7Z
Example filename: archive.7z (default option)

Switch -tgzip:
Format: GZIP
Example filenames: archive.gzip, archive.gz

Switch -tzip:
Format: ZIP
Example filename: archive.zip (compatible)

Switch -tbzip2:
Format: BZIP2
Example filename: archive.bzip2

Switch -ttar:
Format: TAR
Example filename: tarball.tar (UNIX and Linux)

Switch -tiso:
Format: ISO
Example filename: image.iso

Switch -tudf:
Format: UDF
Example filename: disk.udf