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Top Forums Shell Programming and Scripting don't know how to interpret this Post 302503431 by Corona688 on Thursday 10th of March 2011 01:33:58 PM
Old 03-10-2011
I hope that's an example of how not to do something because it doesn't work.

Code:
listpage="ls | more"
$listpage
ls:  cannot access "|":  no such file or directory
ls:  cannot access "more": no such file or directory

The idea, I think, is to run the ls command to list the current directory, and feed its output into the more program so you can view it page by page. But you can't dump that text into a variable and expect it to work because the shell doesn't evaluate variables that way unless you force it to with eval.

How I'd actually do that is this:
Code:
alias listpage="ls | more"
listpage

 

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PWD(1)							    BSD General Commands Manual 						    PWD(1)

NAME
pwd -- return working directory name SYNOPSIS
pwd [-L | -P] DESCRIPTION
The pwd utility writes the absolute pathname of the current working directory to the standard output. Some shells may provide a builtin pwd command which is similar or identical to this utility. Consult the builtin(1) manual page. The options are as follows: -L Display the logical current working directory. -P Display the physical current working directory (all symbolic links resolved). If no options are specified, the -L option is assumed. ENVIRONMENT
Environment variables used by pwd: PWD Logical current working directory. EXIT STATUS
The pwd utility exits 0 on success, and >0 if an error occurs. SEE ALSO
builtin(1), cd(1), csh(1), sh(1), getcwd(3) STANDARDS
The pwd utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). BUGS
In csh(1) the command dirs is always faster because it is built into that shell. However, it can give a different answer in the rare case that the current directory or a containing directory was moved after the shell descended into it. The -L option does not work unless the PWD environment variable is exported by the shell. BSD
April 12, 2003 BSD
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