Quotes around $@ (and ${arr[@]}) protect against word splitting and other substitutions, but still retain the list of argument members (and other array members).
In contrast, with $* and ${arr[*]} the quotes would enforce one string.
These 2 Users Gave Thanks to MadeInGermany For This Post:
hi
i have a function
abc
{
//from this function i am passing args to antoher function like
def a b c j k l
}
now i want to count the no of args coming to def() function and iterate over those values
is there any way to do this one
please help (2 Replies)
Hi,
I am using SYBASE database. in my script i am connecting to DB via using isql.
isql -U${S_USER} -S${S_SERV} -D${S_DB} -P${S_PWD} -b0 -w3000 -h0 -s"|" -i${MYDIR}/ABC.sql -oXYZ.txt << FINSQL
i am taking a ABC.sql file to use the queries written in it and storing the output in... (3 Replies)
hi,
i have an rpm, and i am looking at the presinstall script. i can see it takes in an argument, but what i do not know is how this argument is passed to the script? is there something that calls the preinstall script? i thought the preinstall script was the first thing executed.
thanks (2 Replies)
Hi Guys,
I am trying to pass arguments to the script i am wrinting.
When no argument is passed or wrong argument is passed, the script needs to output the way it needs to be called and exit.
Currently, when no arguments is passed, it is not getting exited but goes on assuming those... (3 Replies)
Hi
I want to write a script which store all the parameters passed to the script into an array.
Once it is stored I want scan through the array and and delete those files for last month present inside the directory. The files in directory is appneded with YYYY_MM_DD.
I want to know how can I... (3 Replies)
this is my issue.
4 parameters are passed from korn shell to sql script.
parameter_1= varchar2 datatype or no value entered my user.
parameter_2= number datatype or no value entered my user.
parameter_3= number datatype or no value entered my user.
parameter_4= number datatype or no... (5 Replies)
Hi all,
I am trying to delete columns in a file using a script. The columns that need to be deleted are passed as arguments to the script.
The script should look like this
> delete_columns.sh <file_name.txt> <column_numbers_to_be_deleted>
The contents of the file_name.txt will be like ... (5 Replies)
My requirement is that I want to pass similar argument to a shell script and process it in the script. Something like below:
myScript.sh -c COMPONENT1 -c COMPONENT2 -a APPNote: -c option can be specified multiple times and -a is optional parameter
I know this can be achieved using... (2 Replies)
Hi All,
I have a script which intends to create as many variables at runtime, as the number of parameters passed to it. The script needs to save these parameter values in the variables created and print them
abc.sh
----------
export Numbr_Parms=$#
export a=1
while
do
export... (3 Replies)
Discussion started by: dev.devil.1983
3 Replies
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be64toh
ENDIAN(3) Linux Programmer's Manual ENDIAN(3)NAME
htobe16, htole16, be16toh, le16toh, htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh - convert values between host
and big-/little-endian byte order
SYNOPSIS
#define _BSD_SOURCE
#include <endian.h>
uint16_t htobe16(uint16_t host_16bits);
uint16_t htole16(uint16_t host_16bits);
uint16_t be16toh(uint16_t big_endian_16bits);
uint16_t le16toh(uint16_t little_endian_16bits);
uint32_t htobe32(uint32_t host_32bits);
uint32_t htole32(uint32_t host_32bits);
uint32_t be32toh(uint32_t big_endian_32bits);
uint32_t le32toh(uint32_t little_endian_32bits);
uint64_t htobe64(uint64_t host_64bits);
uint64_t htole64(uint64_t host_64bits);
uint64_t be64toh(uint64_t big_endian_64bits);
uint64_t le64toh(uint64_t little_endian_64bits);
DESCRIPTION
These functions convert the byte encoding of integer values from the byte order that the current CPU (the "host") uses, to and from little-
endian and big-endian byte order.
The number, nn, in the name of each function indicates the size of integer handled by the function, either 16, 32, or 64 bits.
The functions with names of the form "htobenn" convert from host byte order to big-endian order.
The functions with names of the form "htolenn" convert from host byte order to little-endian order.
The functions with names of the form "benntoh" convert from big-endian order to host byte order.
The functions with names of the form "lenntoh" convert from little-endian order to host byte order.
VERSIONS
These function were added to glibc in version 2.9.
CONFORMING TO
These functions are nonstandard. Similar functions are present on the BSDs, where the required header file is <sys/endian.h> instead of
<endian.h>. Unfortunately, NetBSD, FreeBSD, and glibc haven't followed the original OpenBSD naming convention for these functions, whereby
the nn component always appears at the end of the function name (thus, for example, in NetBSD, FreeBSD, and glibc, the equivalent of OpenB-
SDs "betoh32" is "be32toh").
NOTES
These functions are similar to the older byteorder(3) family of functions. For example, be32toh() is identical to ntohl().
The advantage of the byteorder(3) functions is that they are standard functions available on all Unix systems. On the other hand, the fact
that they were designed for use in the context of TCP/IP means that they lack the 64-bit and little-endian variants described in this page.
EXAMPLE
The program below display the results of converting an integer from host byte order to both little-endian and big-endian byte order. Since
host byte order is either little-endian or big-endian, only one of these conversions will have an effect. When we run this program on a
little-endian system such as x86-32, we see the following:
$ ./a.out
x.u32 = 0x44332211
htole32(x.u32) = 0x44332211
htobe32(x.u32) = 0x11223344
Program source
#include <endian.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
int
main(int argc, char *argv[])
{
union {
uint32_t u32;
uint8_t arr[4];
} x;
x.arr[0] = 0x11; /* Lowest-address byte */
x.arr[1] = 0x22;
x.arr[2] = 0x33;
x.arr[3] = 0x44; /* Highest-address byte */
printf("x.u32 = 0x%x
", x.u32);
printf("htole32(x.u32) = 0x%x
", htole32(x.u32));
printf("htobe32(x.u32) = 0x%x
", htobe32(x.u32));
exit(EXIT_SUCCESS);
}
SEE ALSO byteorder(3)COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2009-01-19 ENDIAN(3)