11-23-2009
page 102, bash beginner's guide, tldp.org
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi, i've got an executable shell script, called mysc.sh with this line only:
export DATASIZE=0
i run it from my console (./mysc.sh), and after that in the console i run:
echo $DATASIZE
and nothing prints
what could be the problem???
thanks!! (2 Replies)
Discussion started by: kfad
2 Replies
2. Shell Programming and Scripting
Hi ..
I have a dynamic script called from a programming language called Powerhouse (4GL).
The module, called QUIZ, allows the user to call shell commands from within it...
i.e.
!rm -f mipss156t2cmd1.bat mipss156t2tmp1.txt
!printf '#!/bin/csh\n' > mipss156t2cmd1.bat
!printf 'setenv... (0 Replies)
Discussion started by: ElCaito
0 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I am using bash and need to run a set of tcsh scripts that set environment variables. Is there a way to do this? Any help greatly appreciated. (3 Replies)
Discussion started by: konndanley
3 Replies
4. Shell Programming and Scripting
I have a question about how to change variables in parent shell.
My script, test.sh, is below:
#!/bin/sh
# test.sh
PATH=.
The commands I ran for test:
$ echo $PATH
.:/usr/bin:/usr/sbin:/usr/local/sbin:
$ sh test.sh
$ echo $PATH
.:/usr/bin:/usr/sbin:/usr/local/sbin:
... (1 Reply)
Discussion started by: pankai
1 Replies
5. Shell Programming and Scripting
Hi,
I haev to devlop a script which when executed will take in a sudo privelege and run a set of commands then will go back to parent shell and execute the rest of the command
But the problem I am facing is that when the script is executed it takes the sudo privelege but it waits for the... (0 Replies)
Discussion started by: ruchirmayank
0 Replies
6. Shell Programming and Scripting
hi experts(novice people can stay away as it is no child's game),
i am developing a script which works like recycle bin of windows.
the problem i am facing is that when ever i am trying to delete a file which is situated in parent directory or parent's parent directory i am unable to... (1 Reply)
Discussion started by: yahoo!
1 Replies
7. Shell Programming and Scripting
Hi, I am looking for a solution for the following problem:
Im Using tcpdump within a shellskript started in a subshell by using brackets: ( /usr/sbin/tcpdump -i ... -c 1 )
- I want the outout of tcpdump saved in a variable
- Than tcpdump-Process in the Subshell should be killed
- and I... (6 Replies)
Discussion started by: 2retti
6 Replies
8. Shell Programming and Scripting
Friends...This is the first time i am trying the report generation using shell script... any suggestions are welcome.
Is there a way to set the font size & color when i am exporting the data from unix shell script as a CSV file ?
The following sample data is saved as a .csv file in the... (2 Replies)
Discussion started by: appu2176
2 Replies
9. Shell Programming and Scripting
A not-too-ugly solution to this classic problem...
#!/bin/bash
mknod fifo p
(
echo 'value' > fifo &
)
VARIABLE=`cat fifo`
rm fifo
Whatdcha think? Good? No good? (9 Replies)
Discussion started by: vomv1988
9 Replies
10. Shell Programming and Scripting
Hello,
I'm very new to Linux, and I have a question, I'm hoping you could help me with. :)
I have created a file called subject, contains this code:
#!/bin/bash
read -p "Student Name: " NAME
read -p "Student ID: " ID
read -p "Address: " ADDRESS
I'm to create another file called... (7 Replies)
Discussion started by: iwant2learn
7 Replies
LEARN ABOUT X11R4
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