05-04-2006
Thats gr8888! A Million thanks to you...
Itz working perfect...
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
All...
I want to remove blank spaces in file . I just leraned that we can use
" cat <Input filename> | tr -s ‘ ‘ > <Target file name> "
i also know with SED we can replace a blank space by other character by
sed s/ /*/g filename.
Please let me know how can i do that by... (1 Reply)
Discussion started by: arunkumar_mca
1 Replies
2. Shell Programming and Scripting
Hi,
I need a help in deleting extra spaces in a text.
I have a huge file, a part of it is :-
3 09/21/08 03:32:07 started undef mino Oracle nmx004.wwdc.numonyx.com Message Text : The Oracle session with the PID 1103 has a CPU time ... (6 Replies)
Discussion started by: vikas027
6 Replies
3. Shell Programming and Scripting
Hi,
I have a source file as mentioned below: I want to remove all the extra spaces between the fields.
a b--------|sa df-------|3232---|3
sf sa------|afs sdf-----|43-----|33
a b c------|adfsa dsf---|23-32|23
*Here '-' idicates spaces
Now, I want output as below:
a b|sa df|3232|3... (7 Replies)
Discussion started by: srilaxmi
7 Replies
4. Shell Programming and Scripting
Hi,
I have a string like this and i want to remove extra spaces that exists between the words.
Here is the sentence.
$string="The small DNA genome of hepadnaviruses is replicated by reverse transcription via an RNA intermediate. This RNA "pregenome" contains ... (2 Replies)
Discussion started by: vanitham
2 Replies
5. Shell Programming and Scripting
Suppose, I have a variable var=" name is ".
I want to remove the blank spaces from the begining and endonly, not from the entire string.
So, that the variable/string looks like following
var="name is".
Please look after the issue. (3 Replies)
Discussion started by: mady135
3 Replies
6. Shell Programming and Scripting
I have a file which contains certain records about users. the row length is always fixed to 205 characters.
Now I want to read each record line from the file, substring some portion out of it and put into another file. But I have observed that my script is trimming the extra spaces I have used for... (4 Replies)
Discussion started by: Pramit
4 Replies
7. Shell Programming and Scripting
HI,
I need the help from the experts like I have created one file with text like:
a b c d
e f g h
i j k l
So my question is that i have to write the script in which like in the first sentence it will take only one space after d and remove all the extra space in the end.I dont... (8 Replies)
Discussion started by: bhanudhingra
8 Replies
8. Shell Programming and Scripting
Hi guru's,
I am trying to write a script to generate a csv file by connecting to database run a query and put the values into csv file.
But the problem i face is i am getting lot of space after one value.how can i remove those values?.
Please help.
#!/bin/bash
export... (2 Replies)
Discussion started by: karingulanagara
2 Replies
9. UNIX Desktop Questions & Answers
I have a file of about 10k records and eace line is having an extra space of 5 byte at the end.. Iwant to remove the extra spaces at the end of each line.. Can someone please help me out.. I tried using sed command and its not working... can someone please help me out. (3 Replies)
Discussion started by: rammohan
3 Replies
10. UNIX for Beginners Questions & Answers
Hi,
I want to remove all extra spaces, line breaks .
Need a new line entry only for term starting"array"
For eg: my input is
array(),
array(),
array(),
and my expected output is
array(),
array(),
array(),
Is it possible using awk? (5 Replies)
Discussion started by: rsi.245
5 Replies
LEARN ABOUT NETBSD
nbperf
NBPERF(1) BSD General Commands Manual NBPERF(1)
NAME
nbperf -- compute a perfect hash function
SYNOPSIS
nbperf [-ps] [-a algorithm] [-c utilisation] [-h hash] [-i iterations] [-m map-file] [-n name] [-o output] [input]
DESCRIPTION
nbperf reads a number of keys one per line from standard input or input. It computes a minimal perfect hash function and writes it to stdout
or output. The default algorithm is "chm".
The -m argument instructs nbperf to write the resulting key mapping to map-file. Each line gives the result of the hash function for the
corresponding input key.
The parameter utilisation determines the space efficiency.
Supported arguments for -a:
chm This results in an order preserving minimal perfect hash function. The utilisation must be at least 2, the default. The number of
iterations needed grows if the utilisation is very near to 2.
chm3
Similar to chm. The resulting hash function needs three instead of two table lookups when compared to chm. The utilisation must be at
least 1.24, the default. This makes the output for chm3 noticable smaller than the output for chm.
bpz This results in a non-order preserving minimal perfect hash function. Output size is approximately 2.79 bit per key for the default
value of utilisation, 1.24. This is also the smallest supported value.
Supported arguments for -h:
mi_vector_hash Platform-independent version of Jenkins parallel hash. See mi_vector_hash(3).
The number of iterations can be limited with -i. nbperf outputs a function matching uint32_t hash(const void * restrict, size_t) to stdout.
The function expects the key length as second argument, for strings not including the terminating NUL. It is the responsibility of the call-
er to pass in only valid keys or compare the resulting index to the key. The function name can be changed using -n name. If the -s flag is
specified, it will be static.
After each failing iteration, a dot is written to stderr.
nbperf checks for duplicate keys on the first iteration that passed basic hash distribution tests. In that case, an error message is printed
and the program terminates.
If the -p flag is specified, the hash function is seeded in a stable way. This may take longer than the normal random seed, but ensures that
the output is the same for repeated invocations as long as the input is constant.
EXIT STATUS
The nbperf utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
mi_vector_hash(3)
AUTHORS
Jorg Sonnenberger
BSD
September 25, 2012 BSD