10-04-2010
(See the link in bartus11 post - it shows the special syntax for bash).
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1. UNIX for Dummies Questions & Answers
I apologize for the simple question but can someone please help me with how to evaluate a number?
I will be reading in a file and if a number is >= 100000000, I will do something, if not, I will exit the if statement.
Thanks in advance (1 Reply)
Discussion started by: hedrict
1 Replies
2. UNIX for Dummies Questions & Answers
Hi
I have a script in which I have several variables
var1
var2
var3
var4
etc......
and
field1
field2
field3
field4
etc.......
The script similar to this: (6 Replies)
Discussion started by: Bab00shka
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3. UNIX for Dummies Questions & Answers
Hi all,
I ve a script like....
TBL=employee
sql=`cat abhi.sql` \\ abhi.sql contains ------- select a from $TBL
echo $TBL
echo $sql
SQL=`echo $sql`
echo $SQL
now i want SQL as select a from employee
and as select a from $TBL
How can I achieve this?
Help appriciated (3 Replies)
Discussion started by: abzi
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4. Shell Programming and Scripting
I have a user defined configuration file, which could contain the following type of entries:
directory_001=/a/directory/structure
pattern_001=fred*
pattern_002=*
I have a script which reads the file generically which will loop round
loop 1
genvar=”directory”
iteration=”001”
... (11 Replies)
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5. UNIX for Dummies Questions & Answers
how do i evaluate the value of date
if ( $(date +%m) > 8 ) then
FY_STAMP=FY$(echo $(($(date +%Y) + 1)) | cut -c3-4)
else
FY_STAMP=FY$(date +%y)
fi
i want this to make the FY_STAMP increment by 1 if the month is september and up. but cant seem to make it work (3 Replies)
Discussion started by: rsf01
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6. Shell Programming and Scripting
Hello, i'm unable to write a correct if... statement to evaluate the $? variable.
Could anybody send to me an example? for example, this lines of code didn't work...
if ; then
etc etc
if ; then
etc etc
Thank you in advanced. (5 Replies)
Discussion started by: aristegui
5 Replies
7. Shell Programming and Scripting
Hi,
I have the following requirement.
V="First"
R="V"
echo $$R
The output should be First. How do i achieve this.
how do we evaluate the $R and evaluate it to $V as $R contains V
and $V is First.
Thanks
Vijay (2 Replies)
Discussion started by: vijaykrc
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8. Shell Programming and Scripting
I have the following in my makefile:
RESULT=`../${TOOLS_ROOT_PATH}/ext_tools.sh 11`; \
set $$RESULT > tMp; \
rm tMp; \
if ; then \
echo copying external-local tool: $< \($$*\); \
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cp -f... (4 Replies)
Discussion started by: jake_ryan
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9. Shell Programming and Scripting
Hi there, i think im getting myself a little confused and need some help :wall:
I am reading in a bunch of variables to my script from an external file and need to validate that a value has been set for each
so if you can imagine, the user is required to pass in 4 values... (3 Replies)
Discussion started by: rethink
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10. UNIX for Dummies Questions & Answers
So, the beginning of my script will cat & grep a file with the output directed to a new file. The data I have in this file needs to be parsed, read and evaluated.
Basically, I need to identify the latest date/time stamp and then calculate whether or not it is within 15 minutes of the current... (1 Reply)
Discussion started by: hynesward
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LEARN ABOUT DEBIAN
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