06-30-2010
Split based on Context
Hello,
I have a file that I want to be able to split at specific positions. For example in the file below I want to be able to split at every occurence of 2 at the start of a line, into multiple files.
2 abc PQRST
abcRSTG
2 cde FGKL
abcLKGRG
ABCLKgrg
2 lmn OPT
lmopqrst
uvwxyz
The output I want is:
File 1:
2 abc PQRST
abcRSTG
File 2:
2 cde FGKL
abcLKGRG
ABCLKgrg
File 3:
2 lmn OPT
lmopqrst
uvwxyz
Thanks,
Gussi
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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)