python - What does "~" mean in gdal? -

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i'm new in programming , try use gdal library python. execute gdalinfo command, don't know "~" mean in "gdalinfo somedir/somefile.tif" example. explain me?

i assume looking @ obtain latitude , longitude geotiff file, line is:

dalinfo ~/somedir/somefile.tif

here ~ unix style shell expansion , shortcut current user's home directory. nearest equivalent on windows environment variable %homedir%.

on unix style systems represented environment variable value $home.

the user's home directory current directory ("folder", if must) used when first logon. on unix systems holds files containing user preferences , start-up files, using filenames beginning dot, example .profile. won't see using ls, need ls -a. home directory on windows used, many end-users not aware of it, although software products (particularly portable ones) use it.

the ~ means different in programming language, , cannot used part of filename without invoking shell.

in python, home directory need read environment variable, example os.environ['home'].


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