Newlines in shell variables Post: 102114

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Top Forums Shell Programming and Scripting Newlines in shell variables Post 102114 by tmarikle on Wednesday 15th of March 2006 04:46:30 PM

03-15-2006

Registered User

bash gives alot of help here. From the bash man page:

Code:

     echo [-neE] [arg ...]
          Output the args, separated by  spaces,  followed  by  a
          newline.   The  return  status  is  always 0.  If -n is
          specified, the trailing newline is suppressed.  If  the
          -e  option  is  given,  interpretation of the following
          backslash-escaped characters is enabled.  The -E option
          disables the interpretation of these escape characters,
          even on systems where they are interpreted by  default.
          echo  does not interpret -- to mean the end of options.
          echo interprets the following escape sequences:
          \a   alert (bell)
          \b   backspace
          \c   suppress trailing newline
          \e   an escape character
          \f   form feed
          \n   new line
          \r   carriage return
          \t   horizontal tab
          \v   vertical tab
          \\   backslash
          \nnn the character whose ASCII code is the octal  value
               nnn (one to three digits)
          \xnnn
               the character whose ASCII code is the  hexadecimal
               value nnn (one to three digits)

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LEARN ABOUT CENTOS

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)