07-07-2009
@Ramesh_srk
Yes Ramesh the directory has a lot of files having xyz* files.
@kshji
Thanks a lot. Its working as expected.
Just wanted to clarify one more thing. There are more than 100 xyz* files present in the directory and I'm checking for only today's file which will be one or two and the others are old files. If I use a for loop will it not take more time?
coz I have search for a lot of different files in different directories created for the day. All these directories will have 100 of files with the same starting charcters as the ones I search for. So if I use a "for" loop wont the script take more time and more CPU utilization. Just wanted to know.
In between your explanation of unix treats the variables and conditions is very helpful. Thanks a ton for that too.
Thanks
Last edited by achilles5; 07-07-2009 at 09:57 AM..
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whereis(1) General Commands Manual whereis(1)
NAME
whereis - Locates files for programs
SYNOPSIS
whereis [-bms] [-u] [-BMS directory... -f] program...
The whereis command locates source, binary, and/or reference page files for the specified program program.
OPTIONS
The -b, -m, and -s options can be used in combination to restrict the search. Searches for an executable program. Searches for the refer-
ence page for a program. Searches for the sources of a program.
Use the -B, -M, and -S options to change or limit the places whereis searches. Specifies the binary directories to search. Specifies the
reference page directories to search. Specifies the source directories to search.
The other options that can be used with whereis are as follows: Terminates the last directory list and signals the start of program names.
Used with other options to indicate when there is no file for program in the default or specified directory or directories (source, binary,
or reference page).
DESCRIPTION
The whereis program locates source, binary, and reference pages for the specified programs. When looking for a match, the program names
are stripped of leading pathname components and any trailing extensions of the form (for example, s. resulting from the use of the Source
Code Control System see sccs(1), are also handled.
The default directories searched by the whereis command are as follows: /etc /etc/nls /sbin /usr/bin /usr/lbin /usr/lbin/spell /usr/ccs/lib
/usr/lib /usr/local /usr/hosts /usr/sbin
EXAMPLES
To find files matching cat in the default source, binary, and reference directories, enter: whereis cat To search for reference pages for
app13 in the directory /usr/local/man, enter: whereis -M /usr/local/man -f -f appl3 To find the programs in /usr/bin that do not have ref-
erence pages in /usr/share/man/man1 with source files in /usr/src/cmd, enter: whereis -u -M /usr/share/man/man1
-S /usr/src/cmd -f /usr/bin/* To find which files in the current directory either have no reference pages in the default reference
directories or have more than one, enter: whereis -m -u *
FILES
Default binary directories. Default binary directories. Default reference directories. Default source directories.
SEE ALSO
Commands: apropos(1), find(1), man(1), which(1), catman(8)
whereis(1)