one of my colleagues has this question.
he has a command, C_CMD which accepts 4 variables, $1 $2 $3 $4
he wants to load up a file with multiple rows, one row per set of variables and then iteratively execute the command based on the content of the file.
example:
at the command line you'd... (5 Replies)
Hi,
I do have a file and the contents are as follws:
10
20
30
40
50
Now I want to store those values into an array. How can be done this ?? (3 Replies)
Passing a array to a function, a basic feature in modern language, seems to be only possible in KSH. Not in BASH. Depite all my efforts I couldn't come to a solution. See the following examples:
It works perfectly in KSH:
#!/usr/bin/ksh
function print_array {
# assign array by indirect... (3 Replies)
Hi there,
I am trying to call a shell script from a Perl script. here is the code:
@args = ("sh", "someshellprg.sh", "a file handler", "an array");
system(@args) == 0
or die "system @args failed: $?";
in the shell program, I examine if the arguments exits using:
if
then echo... (5 Replies)
Hi,
I'm trying to write a function that reassigns an array to
another local array but the method used in reassigning
the array reformats the contents of the array which is
what I am trying to prevent.
The method used to load a file into an array works as
expected and the entire array is... (4 Replies)
Hi,
Is there an easy way to simulate following Perl code in Bash.
if ( grep {$my_value eq $_} @ARGV ){
print "Do Something\n";
} else {
die "Invalid value";
} (0 Replies)
Good grief so this should be easy. Passing an array as an argument to a function. Here is the sample code:
#/bin/bash
function foo {
local p1=${1}
local p2=(${2})
local p3=${3}
echo p1 is $p1
echo p2 is $p2
echo p3 is $p3
}
d1=data1
d2=data2
a=(bat bar baz) (2 Replies)
:wall: Hi,
I have an XML file with 5 tags. I need to pass values to the XML file from a shell script that will replace values in 2 of the tags. I cannot hardcode the tag values in XML and use replace command in script as the values are likely to change.
Please help !!!!!!!!!!! (2 Replies)
Hello :)
I created a little script that allow to make a rotation of values in an array. The goal was to shift the values to the right and that the last value of the array became the first value in order to create a rotation.
The purpose of the exercice was to do it without using a temporary... (3 Replies)
Hello :)
I created a little script that allow to make a rotation of values in an array. The goal was to shift the values to the right and that the last value of the array became the first value in order to create a rotation.
The purpose of the exercice was to do it without using a temporary... (6 Replies)
Discussion started by: Nexy
6 Replies
LEARN ABOUT PHP
libbash
LIBBASH(7) libbash Manual LIBBASH(7)NAME
libbash -- A bash shared libraries package.
DESCRIPTION
libbash is a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may
want to load and use in scripts of your own.
It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries.
Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1). A bash shared library that can be loaded
using
ldbash(1) must answer 4 requirments:
1. It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash).
2. It must contain a line that begins with '#EXPORT='. That line will contain (after the '=') a list of functions that the library
exports. I.e. all the function that will be usable after loading that library will be listed in that line.
3. It must contain a line that begins with '#REQUIRE='. That line will contain (after the '=') a list of bash libraries that are
required for our library. I.e. every bash library that is in use in our bash library must be listed there.
4. The library must be listed (For more information, see ldbashconfig(8)).
Basic guidelines for writing library of your own:
1. Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions.
2. Try to declare all variables intended for internal use as local.
3. Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with:
__<library_name>_
For example, internal function myfoosort of hashstash library should be named as
__hashstash_myfoosort
This helps to avoid conflicts in global name space when using libraries that come from different vendors.
4. See html manual for full version of this guide.
AUTHORS
Hai Zaar <haizaar@haizaar.com>
Gil Ran <ril@ran4.net>
SEE ALSO ldbash(1), ldbashconfig(8), getopts(1), hashstash(1)colors(1)messages(1)urlcoding(1)locks(1)Linux Epoch Linux