We have a very large core file and we need this to send to our vendor for analysis. The gzip’d file of the core is 20GB and the FTP server of the vendor does not like that. Therefore we need to split our very large file to smaller chunks that the FTP server would accept.
Based on the man pages – split(1)
NAME split - split a file into pieces SYNOPSIS split [-linecount | -l linecount] [-a suffixlength] [ file [name]] split [ -b n | nk | nm] [-a suffixlength] [ file [name]] DESCRIPTION The split utility reads file and writes it in linecount-line pieces into a set of output-files. The name of the first output-file is name with aa appended, and so on lexicograph- ically, up to zz (a maximum of 676 files). The maximum length of name is 2 characters less than the maximum filename length allowed by the filesystem.
Check on the file to send
root@solaris# ls -l -rw-r----- 1 root root 21474836480 Apr 8 10:33 core_files.tar.gz
Split the file into 200MB chunks
root@solaris# split -b 200m core_files.tar.gz core_files.tar.gz.split
List the generated files
root@solaris# ls -l -rw-r----- 1 root root 21474836480 Apr 8 10:33 core_files.tar.gz -rw-r--r-- 1 root root 209715200 Apr 8 12:52 core_files.tar.gz.splitaa -rw-r--r-- 1 root root 209715200 Apr 8 12:53 core_files.tar.gz.splitab -rw-r--r-- 1 root root 209715200 Apr 8 12:53 core_files.tar.gz.splitac -rw-r--r-- 1 root root 209715200 Apr 8 12:53 core_files.tar.gz.splitad -rw-r--r-- 1 root root 209715200 Apr 8 12:53 core_files.tar.gz.splitae -rw-r--r-- 1 root root 209715200 Apr 8 12:53 core_files.tar.gz.splitaf <truncated> -rw-r--r-- 1 root root 28265984 Apr 8 12:53 core_files.tar.gz.splitat
You will notice that split(1) has appended letters into the generated files to distinguish the hierarchy.