03-26-2008
I don't see any way to avoid this being an O(n) operation with linked lists.
Using a chained hash table based on the character string would cut the overhead drastically.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
echo name the file that you want to read
read answer
if
then
echo you must enter a file name
fi
cat $answer
im trying to catch the error if user forget to enter the name of the file
anyone can help me ?
thanks:confused: (4 Replies)
Discussion started by: props
4 Replies
2. UNIX for Dummies Questions & Answers
Hi all
Is it possible to copy a structure of a directory only.
e.g.
I have a file with the following entries that is a result of a find :-
/dir1/dir2/file.dbf
/dir1/dir2/dir3/file1.dbf
/dir1/file.dbf
I want to copy these to a directory and keep the structure however starting at a new dir... (8 Replies)
Discussion started by: jhansrod
8 Replies
3. UNIX for Advanced & Expert Users
Hi,
I am trying to write a script that will move all the files from source directory structure(multiple levels might exist) to destination directory structure. If a sub folder is source doesnot exist in destination then I have to skip and goto next level. I also need to delete the files in... (4 Replies)
Discussion started by: srmadab
4 Replies
4. UNIX for Dummies Questions & Answers
How can we find size of a structure with out using sizeof operator?
Thanks,
Harika (2 Replies)
Discussion started by: harikamamidala
2 Replies
5. UNIX for Dummies Questions & Answers
Hi...
I have a directory which has multiple directories and sub directories inside...
what command should i use to get a list of all these directories, without the filenames.... (2 Replies)
Discussion started by: saharookiedba
2 Replies
6. Shell Programming and Scripting
I have the perl data structure and what i need to do is find all values in
@{$extractColumns{'2'}{'D'}} which are not there in @{$extractColumns{'2'}{'M'}} but seems like i need to put a flag somewhere and i messed up
foreach my $order (keys %extractColumns)
{
foreach my $value... (2 Replies)
Discussion started by: dinjo_jo
2 Replies
7. Shell Programming and Scripting
Hi,
I have a script that handles a huge amount of log files from many machines and copies it into a SAN location with the following directory structure:
/SAN/machinenames/yyyy/m/d
so for example
/SAN/hosta/2011/3/12/files*
Now I am writing a bash script to search for files between to date... (4 Replies)
Discussion started by: GermanJulian
4 Replies
8. Shell Programming and Scripting
Im reading a lot about wget and have really enjoyed using it. However I see a lot of tutorials that will show several ways. I want to be able to write scripts in gedit so I was wondering what is the best process to do this instead of just running them in the terminal?? (3 Replies)
Discussion started by: graphicsman
3 Replies
9. Shell Programming and Scripting
Hi all,
I have a big file (n.txt) with following pattern:
ATOM 1 N SER A 1 122.392 152.261 138.190 1.00 0.00 N
ATOM 2 CA SER A 1 122.726 151.241 139.183 1.00 0.00 C
TER
ENDMDL
ATOM 1 N SER A 1 114.207 142.287 135.439 1.00 0.00 ... (3 Replies)
Discussion started by: bioinfo
3 Replies
10. Programming
Hi i want a sctp (lksctp) api which can retrieve the values of the sctp structure "sctpAssocTable"
It is sctpassoctable or sctpassocentry.
SctpAssocEntry ::= SEQUENCE {
sctpAssocId Unsigned32,
sctpAssocRemHostName OCTET STRING,
sctpAssocLocalPort ... (1 Reply)
Discussion started by: harioum
1 Replies
LEARN ABOUT PHP
mb_strcut
MB_STRCUT(3) 1 MB_STRCUT(3)
mb_strcut - Get part of string
SYNOPSIS
string mb_strcut (string $str, int $start, [int $length = NULL], [string $encoding = mb_internal_encoding()])
DESCRIPTION
mb_strcut(3) extracts a substring from a string similarly to mb_substr(3), but operates on bytes instead of characters. If the cut position
happens to be between two bytes of a multi-byte character, the cut is performed starting from the first byte of that character. This is
also the difference to the substr(3) function, which would simply cut the string between the bytes and thus result in a malformed byte
sequence.
PARAMETERS
o $str
- The string being cut.
o $start
- Starting position in bytes.
o $length
- Length in bytes. If omitted or NULL is passed, extract all bytes to the end of the string.
o $encoding
-The $encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used.
RETURN VALUES
mb_strcut(3) returns the portion of $str specified by the $start and $length parameters.
SEE ALSO
mb_substr(3), mb_internal_encoding(3).
PHP Documentation Group MB_STRCUT(3)