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Full Discussion: ls is being killed
Top Forums UNIX for Advanced & Expert Users ls is being killed Post 302169154 by bakunin on Wednesday 20th of February 2008 12:35:08 PM
Old 02-20-2008
Quote:
Originally Posted by darkrainbow
it is only 273 files inside the directory, what is the limit?
The problem is not a filesystem limit, the problem is a commandline limit: when you enter a command with a (shell-)variable or wildcard, like you entered "ls -l *sh" then the shell will expand the wildcard to all the filenames it is representing. Only then it will call the binary (ls in this case) and feed it whatever the wildcard has expanded to.

Example:

Code:
# ls -l
total 55
-rwxr-xr--   1 root     system        20455 Jan 08 12:03 a.sh
-rw-------   1 root     system         2527 Dec 08 2006  b.sh
-rwxr-xr--   1 root     system         5617 Feb 20 13:24 c.sh

We enter a command:

Code:
# ls -l *sh

Now, before giving the command to ls, the shell looks up what "*sh" represents and expands that to "a.sh b.sh c.sh". The command line now looks like:

Code:
# ls -l a.sh b.sh c.sh

Only now "ls" is called and fed the rest of the command line.

Alas, command lines cannot grow ad infinitum. POSIX has a limit of 4k characters and exactly this limit is exceeded in your case as the last value in your output of wc (the number of characters) shows. This is a pretty common gotcha in shell scripting and the common solution is to avoid constructions like that and use "find" instead. Your command above could be safely written this way:

Code:
find . -type f -name "*sh" -print | wc -l

I hope this helps.

bakunin
 

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LEARN ABOUT DEBIAN

miwm

MIWM(1) 						      General Commands Manual							   MIWM(1)

NAME

       miwm - a minimal appearance, full-function window manager

SYNOPSIS

       miwm

DESCRIPTION

       MIWM is Ben Wise's MInimal Window Manager. It is pronounced 'my whim'.

       The  goal  of  miwm is to be a fully functional window manager, while retaining a very spare (Zen or Spartan, as you please) appearance and
       command-set.

WARNING

       This man page is VERY MUCH under construction. It is not complete, and blatantly contains leftover pieces of the man page I used as a  tem-
       plate. Do not rely on anything you find here.

COMMANDS

       The notation for describing commands is that Mouse-1-frame means 'button 1 click on frame', C-Mouse-3-root means 'control button 3 click on
       root',

       Mouse-1-frame
	      Raise.

       Mouse-2-frame
	      Move.  Mouse-2-root Select virtual workspace.

       Mouse-3-frame
	      Hide.

	      Filenames passed to
	      miwm can be directories or deleted files.  If a directory that is not deleted is passed to miwm, then the deleted files or  directo-
	      ries in it will be restored; if the recursive option is specified, then all deleted files or directories in any of its children will
	      be restored as well.

       The shell wildcards * and ?, as well as shell brace notation using [ and ], are interpreted correctly by miwm.	It  is	possible  to  pass
       wildcards  to  the program without the wildcards being intercepted by the shell by setting noglob (in csh) or by quoting the wildcards.	To
       delete a file that actually has a wildcard in its name, you must precede the quoted wildcard with a quoted backslash.

       If no files are specified on the command line, miwm goes into interactive mode.	In interactive mode, the user is prompted to  enter  files
       to be restored, one file per line.  Typing a carriage return on an empty prompt line exits the program.

       Wildcards  and  quoting backslashes can be entered directly at the prompt without any shell interference (which is the main reason there is
       an interactive mode).

OPTIONS

       Miwm No command-line options.

KNOWN BUGS

       The code is too complicated.  No icon support.

SEE ALSO

       9wm(1), aewm(1)

AUTHOR

       Ben Paul Wise

RESTRICTIONS

       Copyright (c) 1998-2003 by Ben Paul Wise.  All rights reserved.	MIWM(1) specifies the terms and conditions for redistribution.

Ben Paul Wise							    06 May 2003 							   MIWM(1)
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