unix - get file size and split the file based on size -

iam writing korn script. want size of file , store in variable in script. dont knw how size number variable if file of size 5gb variable must have 5 in it.

also if size of file exceeds 5gb should split 2gb files.

example: let file name file1 , size 5.6gb. file should split 3 files , naming of files should file1, file2, file3

can me please??

you can use du -bg <file> size in gb.

hence, can do:

size=$(du -bg your_file | cut -dg -f1) 

and then

[ $size -ge 3 ] && split -d -b2g your_file file 

which give files like

file00 file01 

explanation

[ $size -ge 3 ]            &&   split -d -b2g your_file file ----------------------------------------------------------------------   condition of size         split your_file in blocks of 2gb (-b2g)      >=3 gb                 name "file" numerical suffix (-n)