Those are not single quotes but backquotes, also called a grave accent mark. Usually to the left of the number 1 key. You can also do this which handles nesting commands better:
Actually, save a process and useless use of cat:
Hi,
Let say I have these 3 files (state, list and myscript). I want to be able get the sample output like below when I run myscript. Any one know how to fix the code? TIA.
~~~~~~~~~~~~~~~
> cat /home/state
CA
> cat /home/list
CA 100 50 20
AUS 120 61 10
> cat myscript... (6 Replies)
Hi,
I am trying to do the following thing
var='date'
$var
Above command substitutes date for and in turn runs the date command and i am getting the todays date value.
I am trying to do the same thing as following, but facing some problems,
unique_host_pro="sed -e ' /#/d'... (3 Replies)
Hi all,
Is there a simple way to read a command output as a variable? I've running a batch file to do:
attrib.exe * | find /c /v "" >filecount.txt
but rather than write it to the txt file I'd like to read the total in as a variable to pass to the rest of the bat file...
Any help much... (1 Reply)
This should be extremely simple and someone will probably answer it in .5 seconds. I need to know what:
VARIABLE=${0##*/}
does? I do not have a shell handy to just try it in. I am reading through some scripts and need to understand this line. Any help is appreciated.
Many thanks!
-... (3 Replies)
Hi
here is my code
for i in `ls *.cmd`
do
msg
aaa imp -U$AAAUSER -P$AAAUSERPWD <$i>>$curdir/import_tap.out -Jutf8
done
I can only get all files with .cmd extension. what i need to get are all the files inside the specific folder
Thanks (2 Replies)
I have the following script used, i am new to shell scripting. tryign to understand.
in the put $BASE_FOLDER/$base_name holds which path.
What does it mean by $1
second path in put command is it constructing this path: /user/hive/warehouse/stage.db/$1
what is $1 holding in above path.
... (2 Replies)
Hi,
i have a source file and have 3 columns and separated by "|" .i want to split this 3 columns in different variable.When i am executing this values indivisually giving correct result but when the same execute inside a for loop,it's giving issues.
Src file(jjj.txt)
-------... (8 Replies)
I can not figure out how to capture the $filename variable store by the bash.
#!/bin/bash
# oldest folder stored as variable for analysis, version log created, and quality indicators matched to run
dir=/home/cmccabe/Desktop/NGS/test
find "$dir" -maxdepth 1 -mindepth 1 -type d -printf... (5 Replies)
hello, i am facing some issue. I am using a simple bash script that via sshpass put a command into router. Now, problem is that i have a file and commands into it.
sshpass -p $pass ssh -o $log -n $user@$h /ip address set address=10.0.0.1/24
so if I have that command ip address set ... (0 Replies)
How to run several bash commands put in bash command line without needing and requiring a script file.
Because I'm actually a windows guy and new here so for illustration is sort of :
$ bash "echo ${PATH} & echo have a nice day!"
will do output, for example:... (4 Replies)
Discussion started by: abdulbadii
4 Replies
LEARN ABOUT HPUX
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