I have a variable which consists of a string like this:
001 aaabc 44 a bbb12
How do I extract each substring, delimited by the spaces, into new variables - one for each substring?
eg var1 will be 001, var2 will be aaabc, var3 will be 44, var4 will be a, etc?
I've come up with this:... (2 Replies)
Somehow I can't get it for this basic bash problem. maybe someone can help.
What I try to do is:
a="world"
b="hello"
how can I move this into $c so that I can replace "helloworld" with "world hello" in sed like:
sed "s/\helloworld/ ${c}...
I tried several combinations but all with... (4 Replies)
suppose I have a file named abc.txt.The contents of the file is sited below
abc.txt
maitree,test,test3
Using awk command can I store these 3 values in 3 different variable and in one single line command of awk.
suppose variable a b c is there.
I don't want like this
a=`awk -F"," '{print... (2 Replies)
Hello, I am a new joiner to the forum, and have what i hope is a simple question, however I can't seem to find the answer so maybe it is not available within bash scripting.
I intend to use the below script to archive files from multiple directories at once by using a loop, and a variable (n)... (10 Replies)
Hello,
Here is my problem using KSH
I have a set of compound variables, let say cmp_var1 cmp_var2
The names of these variables are stored in an indexed array.
How can I access the subfields of these compound variables ?
I tried:
set -A cmp_varnames=(cmp_var1 cmp_var2)
for cmp in... (4 Replies)
Experts,
I want to set value of variables like this in bash shell:
i=5 ; L=100
I want variable d5 (that is d(i) ) to be assign the value of $L ,
d$i=$L ; echo $d5
Not working
Thanks., (3 Replies)
Hello,
Can you please help here?
DAY=$1
MONTH_MONDAY_YEAR = 1 2 3 4
for i in ${MONTH_${DAY}_YEAR}
do
echo ${i}
done
./test.sh MONDAY
./test.sh: line 3: MONTH_MONDAY_YEAR: command not found
./test.sh: line 10: ${MONTH_${DAY}_YEAR}: bad substitution (6 Replies)
Hi,
I am having a bit of trouble with the below code:
file=/path/to/file
for i in 03 06 07 21; do
if ; then
eval count$i=`grep -c word $file-$i`
fi
done
Totalcount=0
for i in 03 06 07 21; do
if ; then
echo $count$i variable not exist;
else Tcount=`expr $Tcount + $count$i`;
fi... (3 Replies)
Hi Guys,
I was scratching my head for this for half a day... finally not successful :confused:
Following is the problem
I have a variable
$ var1=123
$ var2-234
$ var3=345
and another Variable
$ i=1
Now i wanted to save these into a Variable as shown below
for i in 1 2 3
do... (5 Replies)
Dear Forum members,
I am having trouble getting the complete filename (and directory path) in a variable.
Output directory mentioned in the code have three files:
DISPLAY_CITY_DETAILS_15-05-2019-08-29-26_MIGRATE_london.out
DISPLAY_CITY_DETAILS_15-05-2019-08-29-26_MIGRATE_paris.out... (4 Replies)
Discussion started by: chetanojha
4 Replies
LEARN ABOUT MOJAVE
nvram
nvram(8) System Manager's Manual nvram(8)NAME
nvram - manipulate firmware NVRAM variables
SYNOPSIS
nvram [ -p ] [ -f filename ] [ -d name ] [ -c ] [ name [= value ]] ...
DESCRIPTION
The nvram command allows manipulation of firmware NVRAM variables. It can be used to get or set a variable. It can also be used to print
all of the variables or set a list of variables from a file. Changes to NVRAM variables are only saved by clean restart or shutdown.
In principle, name can be any string. In practice, not all strings will be accepted. New World machines can create new variables as
desired. Some variables require administrator privilege to get or set.
The given value must match the data type required for name. Binary data can be set using the %xx notation, where xx is the hex value of
the byte. The type for new variables is always binary data.
OPTIONS -d name
Deletes the named firmware variable.
-f filename
Set firmware variables from a text file. The file must be a list of "name value" statements. The first space on each line is taken
to be the separator between "name" and "value". If the last character of a line is , the value extends to the next line.
-x Use XML format for reading and writing variables. This option must be used before the -p or -f options, since arguments are pro-
cessed in order.
-c Delete all of the firmware variables.
-p Print all of the firmware variables.
EXAMPLES
example% nvram boot-args="-s rd=*hd:10"
Set the boot-args variable to "-s rd=*hd:10". This would specify single user mode with the root device in hard drive partition 10.
example% nvram my-variable="String One%00String Two%00%00"
Create a new variable, my-variable, containing a list of two C-strings that is terminated by a NUL.
example% nvram -d my-variable
Deletes the variable named my-variable.
October 28, 2003 nvram(8)