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Full Discussion: ls - maximum number of files
Top Forums UNIX for Dummies Questions & Answers ls - maximum number of files Post 302149791 by jim mcnamara on Friday 7th of December 2007 02:42:42 PM
Old 12-07-2007
Wildcard arguments to a command may be expanded by the shell before the command executes - this is globbing.

If this happens, like ls * instead of ls, then the problem is the max size of arguments in bytes to an exec - something listed as ARG_MAX in limits.h. Note: _POSIX_ARG_MAX (4096) is what POSIX says to use, not what your system implmentation supports. ARG_MAX is usually way larger then 4096. And is the one that counts.

You could easily bump into ARG_MAX problems with a huge directory with longer filenames, as well.
 

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LCG_LIMITS(4)							   File Formats 						     LCG_LIMITS(4)

NAME
Castor_limits - LCG internal limits SYNOPSIS
#include <Castor_limits.h> DESCRIPTION
The Castor_limits.h header file contains all the common limits that all LCG subpackages have to respect. These are: CA_MAXACLENTRIES maximum number of ACL entries for a file/dir Default value: 300 CA_MAXCLASNAMELEN maximum length for a fileclass name Default value: 15 CA_MAXCOMMENTLEN maximum length for user comments in metadata Default value: 255 CA_MAXDENFIELDS maximum number of density values in devinfo Default value: 8 CA_MAXDENLEN maximum length for a alphanumeric density Default value: 8 CA_MAXDGNLEN maximum length for a device group name Default value: 6 CA_MAXDPMTOKENLEN maximum length for a Disk Pool Manager token Default value: 36 CA_MAXDVNLEN maximum length for a device name Default value: 63 CA_MAXDVTLEN maximum length for a device type Default value: 8 CA_MAXFIDLEN maximum length for a fid (DSN) Default value: 17 CA_MAXFSEQLEN maximum length for a fseq string Default value: 14 CA_MAXGID maximum value for gid Default value: 0x7FFFFFFF CA_MAXGRPNAMELEN maximum length for a group name Default value: 2 CA_MAXGUIDLEN maximum length for a guid Default value: 36 CA_MAXHOSTNAMELEN maximum length for a hostname Default value: 63 CA_MAXLBLTYPLEN maximum length for a label type Default value: 3 CA_MAXLINELEN maximum length for a line in a log Default value: 1023 CA_MAXMANUFLEN maximum length for a cartridge manufacturer Default value: 12 CA_MAXMLLEN maximum length for a cartridge media_letter Default value: 1 CA_MAXMODELLEN maximum length for a cartridge model Default value: 6 CA_MAXNAMELEN maximum length for a pathname component Default value: 255 CA_MAXNBDRIVES maximum number of tape drives per server Default value: 32 CA_MAXPATHLEN maximum length for a pathname Default value: 1023 CA_MAXPOLICYLEN maximum length for a policy name Default value: 15 CA_MAXPOOLNAMELEN maximum length for a pool name Default value: 15 CA_MAXPROTOLEN maximum length for a protocol name Default value: 7 CA_MAXRBTNAMELEN maximum length for a robot name Default value: 17 CA_MAXRECFMLEN maximum length for a record format Default value: 3 CA_MAXREGEXPLEN maximum length for a regular expression Default value: 63 CA_MAXSFNLEN maximum length for a replica Default value: 1103 CA_MAXSHORTHOSTLEN maximum length for a hostname without domain Default value: 10 CA_MAXSNLEN maximum length for a cartridge serial nb Default value: 24 CA_MAXSTGRIDLEN maximum length for a stager full request id (must be >= nb digits in CA_MAXSTGREQID + CA_MAXHOSTNAMELEN + 8) Default value: 77 CA_MAXSTGREQID maximum value for a stager request id Default value: 999999 CA_MAXUID maximum value for uid Default value: 0x7FFFFFFF CA_MAXSYMLINKS maximum number of symbolic links Default value: 5 CA_MAXTAGLEN maximum length for a volume tag Default value: 255 CA_MAXTAPELIBLEN maximum length for a tape library name Default value: 8 CA_MAXUNMLEN maximum length for a drive name Default value: 8 CA_MAXUSRNAMELEN maximum length for a login name Default value: 14 CA_MAXVIDLEN maximum length for a VID Default value: 6 CA_MAXVSNLEN maximum length for a VSN Default value: 6 AUTHOR
LCG Grid Deployment Team LCG
$Date: 2007/02/03 11:16:45 $ LCG_LIMITS(4)
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