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Full Discussion: Help needed in search string
Top Forums UNIX for Dummies Questions & Answers Help needed in search string Post 302146732 by bakunin on Thursday 22nd of November 2007 03:52:53 AM
Old 11-22-2007
Lets see if i have understood you correctly:

you search for a string of the form "<string1>\<string2>" and want to write it to a file. Then you search for strings of the form "<string1>\" or "\<string2>" and write it to another file.

This is done with pattern matching. You can use either sed or awk for that, in this case i would suggest sed because it is smaller than awk and you don't need the capabilities awk would offer.

The string "<string1>/<string2>" can be found with the regexp:

Code:
[^ ][^ ]*\\[^ ][^ ]*

This searches for one or more non-spaces ("[^ ][^ ]*") followed by a backslash followed by one or more non-spaces. The "\" has to be escaped because it has a special meaning, therefore "\\".

The second form of strings can be found by two regexps, very similar to the first one:

Code:
" \\[^ ][^ ]*" and
"[^ ][^ ]*\\ "

A space followed by a backslash followed by one or more non-spaces or one or more non-spaces followed by a backslash followed by a space.

Write the found lines to two different files and you are done.

If you need further help feel free to ask.

bakunin
 

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LEARN ABOUT MOJAVE

platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)
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