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Shell Programming and Scripting
perl regular expressions and field search
Post 302230663 by quine on Saturday 30th of August 2008 04:01:05 PM
08-30-2008
If you want to SPLIT a line into FIELDS as you say you do in bash, then look up perl's split() built in subroutine... On the other hand, if what you really want is to test the characters from positionX to positionY, then use perl's unpack() function. Once you split out your field by delimiter or position, then you can test it using regular expressions to see if it is the string you want...
I'm not going to do ALL the work for you
I'm not going to do ALL the work for you
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LEARN ABOUT DEBIAN
plan9-split
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 n Split into n-line pieces. -l n Synonym for -n n, a nod to Unix's syntax. -e expression File divisions occur at each line that matches a regular expression; see regexp(7). 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
/src/cmd/split.c SEE ALSO
sed(1), awk(1), grep(1), regexp(7) SPLIT(1)