size

Display section sizes of an executable

$ size [path/to/file]

$ size -o [path/to/file]

$ size -d [path/to/file]

$ size -x [path/to/file]

$ size -t [path/to/file1] [path/to/file2]

$ size -A [path/to/file]

size [-A|-B|-G] [-d|-o|-x] [-t] [objfile...]

size lists the section sizes and total size of binary object files. For each object file, it displays the sizes of the text (code), data, and bss (uninitialized data) sections, along with the total size in bytes and hexadecimal.
The default Berkeley format shows a concise one-line output per file. System V format provides a detailed listing of all sections. If no files are specified, a.out is examined by default.

-A, --format=sysv

Use System V output format (detailed section listing)

Use Berkeley output format (default: text, data, bss, total)

Use GNU output format

Display sizes in decimal

Display sizes in octal

Display sizes in hexadecimal

Show aggregate totals for all listed object files

Include common symbols in the bss size

Specify object code format for the file

Display version information

Display help information

Only works on object files and executables in supported formats (ELF, COFF, etc.). Static libraries show sizes for each object module within. Results may vary based on compilation options and linking.

size is part of GNU binutils, the collection of binary tools maintained by the Free Software Foundation. The command originated in early Unix systems at Bell Labs in the 1970s and has been a standard development tool ever since. GNU binutils provides compatible implementations for various platforms.

objdump(1), readelf(1), nm(1), strip(1)