If you are not sure try experimenting longhand first, it aids me in understanding what is going on inside the shell...
(Note:- I usually try to stay as basic as possible until I do understand.)
Hope this helps:-
Code:
Last login: Sun Sep 1 09:32:06 on ttys000
AMIGA:barrywalker~> # A null character...
AMIGA:barrywalker~> WHTP=""
AMIGA:barrywalker~> echo "$WHTP"
AMIGA:barrywalker~> # A character zero...
AMIGA:barrywalker~> WHTP="0"
AMIGA:barrywalker~> echo "$WHTP"
0
AMIGA:barrywalker~> # This is an error with or without spaces...
AMIGA:barrywalker~> $WHTP=0
-bash: 0=0: command not found
AMIGA:barrywalker~> # It should be...
AMIGA:barrywalker~> WHTP=0
AMIGA:barrywalker~> echo "$WHTP"
0
AMIGA:barrywalker~> # Hope this helps...
I have a list of names in a file.
i want to assign those names to a variable in such a manner
eg:
$cat file.txt
pete
lisa
john
var=pete-lisa-john
how do i do this in shell scripting? (10 Replies)
hi all,
i want use the variable value as a new variable name. print output of new variable.
for i in COMPUTER1 COMPUTER2
do
flag_name=${i}_FLAG
eval ${flag_name}=123
echo $i'_FLAG'
done
output is
COMPUTER1_FLAG
COMPUTER2_FLAG
i need output as
123
123 (2 Replies)
Hi, Sorry for the dumb question but I can't seem to figure this one out. I want to write an if condition that basically checks if my variable is in a file. So far I have the following:
if ]
then
do something
else
do something else
fi
So essentially if the grep returns something then... (3 Replies)
Dear All,
we have a command output which looks like :
Total 200 queues in 30000 Kbytes
and we're going to get "200" and "30000" for further process. currently, i'm using :
numA=echo $OUTPUT | awk '{print $2}'
numB=echo $OUTPUT | awk '{print $5}'
my question is : can I use just one... (4 Replies)
How can I assign a variable to an variable. IE $car=honda
One way I can do it is export $car=honda
or
let $car=2323
Is there any other ways to preform this task (3 Replies)
Hello All,
Hope you're doing well !
I am trying below command to be passed in a shell script, header_date_14 is a variable and $1 is the name of a file I intend to pass as a command line argument, however command line argument is not being accepted.
header_date_14=$(m_dump... (8 Replies)
I have the following script, and I want to assign the output ($10 and $5) from awk to N and L:
grdinfo data.grd | awk '{print $10,$5}'| read N L
output from gridinfo data.grd is: data.grd 50 100 41 82 -2796 6944 0.016 0.016 3001 2461. where N and L is suppose to be 3001 and 100. I use... (8 Replies)
Hi Guys,
I need to assign the value of which has rows to a variable, Can you advise how to do that
hive --orcfiledump /hdfs_path/ | grep "Rows"
Rows: 131554
I need to assign this row count itself to a unix variable
count=$(hive --orcfiledump /hdfs_path/ | grep "Rows")
Expected ... (6 Replies)
Discussion started by: Master_Mind
6 Replies
LEARN ABOUT OSF1
pset_assign_pid
pset_assign_pid(1) General Commands Manual pset_assign_pid(1)NAME
pset_assign_pid - Assigns a process ID to a processor set
SYNOPSIS
/usr/sbin/pset_assign_pid [-x] pset_id pid [pid...]
OPTIONS
Assigns exclusive use of the target processor set to each specified process identification number.
DESCRIPTION
The pset_assign_pid command assigns one or more process identification numbers to an existing processor set. The pset_id variable is a
unique integer that identifies the processor set and is returned by the pset_create command. The pid variable is the process identification
number, which is a unique integer that identifies the process. Each process identification number that is assigned is removed from its cur-
rent processor set.
Use the -x option to assign exclusive use of the processor set. If the processor set is already in use, a message is displayed, and the
command terminates without performing the assignment. If the exclusive assignment succeeds, new requests by other processes for assign-
ments to the specified processor set (pset_id) are denied.
SEE ALSO
Commands: pset_destroy(1), pset_create(1), pset_assign_cpu(1), pset_info(1)
Files: processor_sets(4)pset_assign_pid(1)