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Full Discussion: What difference does * make here ? (ls command question)
Top Forums UNIX for Dummies Questions & Answers What difference does * make here ? (ls command question) Post 302692963 by kraljic on Tuesday 28th of August 2012 09:04:56 AM
Old 08-28-2012
What difference does * make here ? (ls command question)
Solaris 10 (korn shell)

I use -d option with ls command , when I want to suppress contents of the subdirectories being listed
when listing all the directories and files in a directory.

This is what man page says about -d option in ls command.

Code:
 -d           If an argument is a directory, lists  only  its name  (not its contents). 
               Often used with -l to get the status of a directory.

# Creating 2 files and 2 directories for testing

Code:
$ pwd
/tmp/stage_dir
$ ls
$ touch a.txt
$ touch b.txt
$ mkdir mysub_dir1
$ mkdir mysub_dir2
$
$ ls
a.txt       b.txt       mysub_dir1  mysub_dir2

A plain ls -d command will only list just a dot (.) which is understandable because current directory (dot) is just another file and -d option will suppress anything within it from being listed. My question is how the files and directories are listed when an asterik (*) is added . ie. ls -d *




Code:
$ ls -d
.

$ ls -dl
drwxrwxr-x   5 oracle   oinstall     512 Aug  4 23:41 .


$ ls -d *
a.txt       b.txt       mysub_dir1  mysub_dir2
$
$
$
$ ls -ld *
-rw-r--r--   1 oracle   oinstall       0 Aug 26 12:01 a.txt
-rw-r--r--   1 oracle   oinstall       0 Aug 26 12:01 b.txt
drwxr-xr-x   2 oracle   oinstall     512 Aug 26 12:01 mysub_dir1
drwxr-xr-x   2 oracle   oinstall     512 Aug 26 12:01 mysub_dir2

 

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LEARN ABOUT CENTOS

gensprep

gensprep(8)							 ICU 50.1.2 Manual						       gensprep(8)

NAME

       gensprep - compile StringPrep data from files filtered by filterRFC3454.pl

SYNOPSIS

       gensprep [ -h, -?, --help ] [ -v, --verbose ] [ -c, --copyright ] [ -s, --sourcedir source ] [ -d, --destdir destination ]

DESCRIPTION

       gensprep reads filtered RFC 3454 files and compiles their information into a binary form.  The resulting file, <name>.icu, can then be read
       directly by ICU, or used by pkgdata(8) for incorporation into a larger archive or library.

       The files read by gensprep are described in the FILES section.

OPTIONS

       -h, -?, --help
	      Print help about usage and exit.

       -v, --verbose
	      Display extra informative messages during execution.

       -c, --copyright
	      Include a copyright notice into the binary data.

       -s, --sourcedir source
	      Set the source directory to source.  The default source directory is specified by the environment variable ICU_DATA.

       -d, --destdir destination
	      Set the destination directory to destination.  The default destination directory is specified by the environment variable ICU_DATA.

ENVIRONMENT

       ICU_DATA  Specifies the directory containing ICU data. Defaults to /usr/share/icu/50.1.2/.  Some tools in ICU depend on the presence of the
		 trailing slash. It is thus important to make sure that it is present if ICU_DATA is set.

FILES

       The  following files are read by gensprep and are looked for in the source /misc for rfc3454_*.txt files and in source /unidata for Normal-
       izationCorrections.txt.

       rfc3453_A_1.txt	   Contains the list of unassigned codepoints in Unicode version 3.2.0....

       rfc3454_B_1.txt	   Contains the list of code points that are commonly mapped to nothing....

       rfc3454_B_2.txt	   Contains the list of mappings for casefolding of  code points when Normalization form NFKC is specified....

       rfc3454_C_X.txt	   Contains the list of code points that are prohibited for IDNA.

       NormalizationCorrections.txt
			   Contains the list of code points whose normalization has changed since Unicode Version 3.2.0.

VERSION

       50.1.2

COPYRIGHT

       Copyright (C) 2000-2002 IBM, Inc. and others.

SEE ALSO

       pkgdata(8)

ICU MANPAGE
							   18 March 2003						       gensprep(8)
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