The latter is more bash friendly, as you need an explicit sub-shell, not always convenient, as '|(read newppt ; ... $newppt ....)' as otherwise the bash 'read' after '|' is in an implicit sub-shell like '|(read newppt), and the $newppt value is inaccessible to everything.
I usually do less i/o, as there is no point in typing more to make the thing you want the last! As fork is cheaper than exec, and no exec's cheaper than any exec's,if this fits your needs, it is fastest at 1 fork:
or (2 forks and an exec):
or if line is not installed:
Hi all,
I'm creating a script which uses 'defaults read' to retrieve details from an Info.plist like this;
defaults read "/Path/Contents/Info" CFBundleShortVersionString
This works fine in Terminal and returns the expected values.
Is it possible to use this command in a script, and... (0 Replies)
Hello All,
I have a an application written in C and runing on Red Hat Linux.
In my code I have written a command that is fired on the linux shell by using system() function call.
Now I need to read the output of this command in my c program and assign it to a variable.
Can anyone... (1 Reply)
Hey, guys!
Trying to research this is such a pain since the read command itself is a common word. Try searching "unix OR linux read command examples" or using the command substitution keyword. :eek:
So, I wanted to use a command statement similar to the following.
This is kinda taken... (2 Replies)
Hi. I'm trying to write a script that reads a line on a file and runs a different command for a different line output.
For example, if it finds the word "Kuku" on the line it sends mail to Kuku@kuku.com. Otherwise, it sends mail to Lulu@lulu.com.
TIA. (2 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)
Hi!
I have run the following command: snoop -q -d e1000g0 -o /var/tmp/optima0.txt & them I am trying to read the output of it with snoop -i /var/tmp/optima0.txt, which is giving me this: # snoop -i /var/tmp/optima0.txt | more
1 0.00000 AIOPTSVR -> 10.100.4.72 TCP D=1393 S=22 Push... (8 Replies)
I am reading an xml file with date tag as <Date>Default</Date> using the below command.
Dt=$(awk -F'' '/<Date>/{print $3}' /home/test/try.xml
and getting the value from the xml file stored in this variable "Dt"
echo $Dt gives me a value. Dt=Default.
Now according to my requirement, If... (2 Replies)
Hi all, how read varaible and ouput in colum,
e.g.
$ echo $VAR1
opc op odi games gopher vcsa abrt
I like
$ echo $VAR1
opc
op
odi
games
gopher
vcsa
abrt (3 Replies)
Hi,
I have some 2000 names in a table like below.
Java
Oracle/SQL
ANSI SQL
SQL,DWH,DB
DB&Java
And by using for loop in my code i am able to get a single word but if there is any special character or space then it is considering as a next line.
I have to execute the below queries in... (10 Replies)
Hi Folks,
I'm currently trying to read several values into different variables.
Actually, what I'm doing works, but I get an error message.
My attempts are:
read strCPROC strIPROC strAPROC <<<$(ssh -n -T hscroot@$HMC "lshwres -r proc -m $strIDENT --level sys -F \"configurable_sys_proc_units... (11 Replies)