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Full Discussion: shell variables advanced
Top Forums Shell Programming and Scripting shell variables advanced Post 302338731 by fpmurphy on Tuesday 28th of July 2009 06:46:09 PM
Old 07-28-2009
Quote:
is possible to list all variables ?
What do you mean by all variables?

Quote:
Command env display only shell variables
Incorrect. It writes the current environment to standard out.

Quote:
what difference is between set and env ?
set is a shell built-in to set and clear shell options. env writes the current environment to standard out.

Quote:
Is possible to write white spaces in C format (\n \r \t ...) ?
Yes and no. Depends on your shell. What shell are you using?
 

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LESSECHO(1)						      General Commands Manual						       LESSECHO(1)

NAME
lessecho - expand metacharacters SYNOPSIS
lessecho [-ox] [-cx] [-pn] [-dn] [-mx] [-nn] [-ex] [-a] file ... DESCRIPTION
lessecho is a program that simply echos its arguments on standard output. But any argument containing spaces is enclosed in quotes. OPTIONS
A summary of options is included below. -ox Specifies "x" to be the open quote character. -cx Specifies "x" to be the close quote character. -pn Specifies "n" to be the open quote character, as an integer. -dn Specifies "n" to be the close quote character, as an integer. -mx Specifies "x" to be a metachar. -nn Specifies "n" to be a metachar, as an integer. -ex Specifies "x" to be the escape char for metachars. -fn Specifies "n" to be the escape char for metachars, as an integer. -a Specifies that all arguments are to be quoted. The default is that only arguments containing spaces are quoted. SEE ALSO
less(1) AUTHOR
This manual page was written by Thomas Schoepf <schoepf@debian.org>, for the Debian GNU/Linux system (but may be used by others). Send bug reports or comments to bug-less@gnu.org. Version 394: 03 Dec 2005 LESSECHO(1)
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