06-25-2012
split file based on file size in Korn script
Thanks, but I already know how to use split -l --what I'm looking for is how to get the size of the file and pass the number of lines (or half the number of lines) to the split -l command in the script.
I was thinking this might work, but it doesn't:
awk < mylist.txt '{if ($5>78000000) "split -l $5/2 $NF $NF"; rm $NF}'
So I need to know how to get the $5 and $NF values into the shell script so I can run it....
Thank you.
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LEARN ABOUT OPENSOLARIS
split
split(1) User Commands 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 lexicographically, 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. See statvfs(2). If no output name is given, x is used as the default (output-files will
be called xaa, xab, and so forth).
OPTIONS
The following options are supported:
-linecount | -l linecount
Number of lines in each piece. Defaults to 1000 lines.
-a suffixlength
Uses suffixlength letters to form the suffix portion of the filenames of the split file. If -a is not specified, the default suffix
length is 2. If the sum of the name operand and the suffixlength option-argument would create a filename exceeding NAME_MAX bytes, an
error will result; split will exit with a diagnostic message and no files will be created.
-b n
Splits a file into pieces n bytes in size.
-b nk
Splits a file into pieces n*1024 bytes in size.
-b nm
Splits a file into pieces n*1048576 bytes in size.
OPERANDS
The following operands are supported:
file The path name of the ordinary file to be split. If no input file is given or file is -, the standard input will be used.
name The prefix to be used for each of the files resulting from the split operation. If no name argument is given, x will be used as the
prefix of the output files. The combined length of the basename of prefix and suffixlength cannot exceed NAME_MAX bytes. See
OPTIONS.
USAGE
See largefile(5) for the description of the behavior of split when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of split: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWesu |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Committed |
+-----------------------------+-----------------------------+
|Standard |See standards(5). |
+-----------------------------+-----------------------------+
SEE ALSO
csplit(1), statvfs(2), attributes(5), environ(5), largefile(5), standards(5)
SunOS 5.11 16 Apr 1999 split(1)