03-05-2010
Which bash version are you using?
Last edited by radoulov; 03-05-2010 at 02:41 PM..
Reason: English ...
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
From the bash manpage:
typeset ]
What I'm trying to do is add two values in hexadecimal and have the resulting number display in hexadecimal. What I get is the result displayed in decimal. For instance:
a=0x10
b=0x30
((c=a+b))
echo $c
...displays 64. The arithmatic is correct, but the... (2 Replies)
Discussion started by: Loriel
2 Replies
2. UNIX for Dummies Questions & Answers
Hi,
Most of times, I see use of typeset command in ksh scripts, but I don't know what it exactly does. I would be thankful if any body could provide me a brief explanation of typeset in ksh and all of its options, like typeset -A, typeset -r, typeset -Z, typetset -L etc. (5 Replies)
Discussion started by: nervous
5 Replies
3. Shell Programming and Scripting
Hi all,
New to ksh and had a few questions to see if this is doable in ksh or if I am going to have to call out to a tcl procedure. I have an Ascii file I want to convert to hex then search and remove all hex chars '0A' and then convert back to Ascii. Here is an example of an Ascii file I am... (2 Replies)
Discussion started by: hgjdv
2 Replies
4. Shell Programming and Scripting
Hi everybody, hoping you can help.
I'm trying to get some scripts working using bash which were written in ksh and I'm struggling with typeset. Specifically typeset -R and typeset -L. We need fixed length variables with left and right justification and bash does not seem to do it. Spent ages on... (5 Replies)
Discussion started by: Ian_H
5 Replies
5. Shell Programming and Scripting
Hi everybody,
I have a question about typesetting. I originally wrote a script for use with ksh and now I am on a system that I cannot modify, and it only has bash.
In the original script I just did typeset -RZ4 variable and it would add the leading zeros. In bash, it doesn't work.
I've... (2 Replies)
Discussion started by: jwheeler
2 Replies
6. Shell Programming and Scripting
hi
i was trying to optimize one script and i came across this problem .. i am putting some pseudo code here
$ >cat a.sh
ls | while read I
do
i=$(($i + 1))
done
echo "total no of files : "
$ >ksh a.sh
total no of files :
$ >bash a.sh
total no of files :
why is... (1 Reply)
Discussion started by: zedex
1 Replies
7. Shell Programming and Scripting
Hi all,
Am trying to convert a script written in ksh to a bash shell.
At the moment, am stumped with the typeset -u command and I can't find an equivalent of it in bash.
integer function is also not working as is the following if statement
if ] && ]; then
continue
fi
Is... (3 Replies)
Discussion started by: newbie_01
3 Replies
8. Shell Programming and Scripting
Hi all
Below code works in bash but it is not working in ksh.
enddate=`date -d "$enddate + $i day" "+%Y_%m_%d"`
Please help me how it works in ksh
Thanks (10 Replies)
Discussion started by: pmreddy
10 Replies
9. Shell Programming and Scripting
I'm getting different behaviors for "typeset -i" on different systems. In one case unset parameters are 0, and in another case they're empty. Is one of these behaviors correct, or is the behavior here unspecified?
First system:
$ typeset -i x
$ print $x
0
$ print ${.sh.version}
Version M... (13 Replies)
Discussion started by: Matt Miller
13 Replies
LEARN ABOUT POSIX
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