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Top Forums UNIX for Dummies Questions & Answers Split single file into n number of files Post 302552972 by jayan_jay on Tuesday 6th of September 2011 08:44:38 AM
Old 09-06-2011
Here "n" - number of users. In case the line count of infile is not exactly divisible by the number of users, then it ll create a new file with the remainder lines.
Try this ..
Code:
$ wc -l infile | nawk -v n=3 '{print "expr "$1" / "n"|bc" }' | sh | sed 's,^,split -,g;s,$, infile,g' | sh

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SPLIT(1)						      General Commands Manual							  SPLIT(1)

NAME
split - split a file into pieces SYNOPSIS
split [ option ... ] [ file ] DESCRIPTION
Split reads file (standard input by default) and writes it in pieces of 1000 lines per output file. The names of the output files are xaa, xab, and so on to xzz. The options are -n Split into n-line pieces. -e expression File divisions occur at each line that matches a regular expression; see regexp(6). Multiple -e options may appear. If a subex- pression of expression is contained in parentheses (...), the output file name is the portion of the line which matches the subex- pression. -f stem Use stem instead of x in output file names. -s suffix Append suffix to names identified under -e. -x Exclude the matched input line from the output file. -i Ignore case in option -e; force output file names (excluding the suffix) to lower case. SOURCE
/sys/src/cmd/split.c SEE ALSO
sed(1), awk(1) grep(1), regexp(6) SPLIT(1)
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