as – portable GNU assembler
ld – GNU linker
ar – create, modify, extract from archives
ranlib – generate index to archive (= ar -s)
nm – list symbols from object files
strip – discard symbols from object files
objdump – display information from object files
objcopy - copy and translate object files
size – list section sizes and total size
strings – display the sequences of printable characters
readelf – display information about ELF files