Size discussion

[suntong]

Hi,

I tested with a relatively small one of my shell script, which is only ~ 1.3k in size (1323).

The generated file is nearly 70k (68384). In comparison, the shc generated file is about 20k (21120).

This somewhat surprises me, as the shc generated file is a standalone one that can be executed by itself, yet the ssc generated one still needs an interpreter.

I know people would say that disk space is nothing, but I'm just wondering why there's such huge differences between the two. thanks.

UPDATE:

Tried a normal-sized of my script, close to 30k (29906), and the size different is less than doubled (58704 vs 97064), just FTA.

[liberize]

As far as I know, shc needs an interpreter at runtime too, whileas ssc can generate actually standalone binary with -e/-E flags.

The output binary size = main program size + script payload size. The size of main program is always the same. ssc is written in C++ and links against STL, it's generated main program size is expected to be larger.

Anyway, why does several kBs matter？

[suntong]

Oh, thanks. I was wondering why, just my curiosity.