size (Unix)

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size is a command line utility originally written for use with the Unix-like operating systems. It processes one or more ELF files and its output are the dimensions (in bytes) of the text, data and uninitialized sections, and their total.

Common use:

 $ size <option> <filename> ...

Here follows some examples on Solaris (/usr/ccs/bin/size); options and syntax may vary on different Operating Systems:

$ size  /usr/ccs/bin/size
9066 + 888 + 356 = 10310

With -f option name and size of each section are printed out, plus their total:

 $ size -f /usr/ccs/bin/size
 17(.interp) + 636(.hash) + 1440(.dynsym) + 743(.dynstr) + 64(.SUNW_version) + 48(.rela.ex_shared) + 24(.rela.bss) + 336(.rela.plt) + 4760(.text) +
 80(.init) + 80(.fini) + 4(.exception_ranges) + 28(.rodata) + 590(.rodata1) + 12(.got) + 388(.plt) + 192(.dynamic) + 40(.ex_shared) + 112(.data) +
 140(.data1) + 352(.bss) = 10086

With -F option size and permission flag of each sections are printed out, plus their total:

 $ size -F /usr/ccs/bin/size
 9066(r-x) + 1244(rwx) = 10470

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