If you're opposed to reading through man pages within a Terminal session, you can access the online man page for objdump at the following location: https://sourceware.org/binutils/docs-2.32/binutils/objdump.html#objdump. I highly recommend reading the man page thoroughly for some of the other arguments; you may find a few we didn't cover that fit your binary analysis workflow much better than what's available in readelf.

If you're feeling extremely adventurous, the Netwide Disassembler (ndisasm) is another tool we can use to disassemble binaries. The caveat is that ndisasm doesn't understand the header information in specifically formatted binaries such as ELF, so we have to do a little extra work to use the tool effectively for static analysis. You can read up on ndisasm in the manual for the Netwide Assembler at the following URL: https://www.nasm.us/doc/nasmdoca.html.