9 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
I do not know the use of the -o -v -R operators.
This is what the info says and I am confused of what optname and varname
mean, are they just normal variable?
-o optname
True if the shell option optname is enabled. See the list of
options under the ... (6 Replies)
Discussion started by: kristinu
6 Replies
2. Programming
Hey everyone, I'm really getting into learning C, but as I look at more advanced example code, I see things like
if (!*variable1)
blah blah blah...
and
variable2 ^= *(variable1++);
my question is, when you have a combination of two operators, like !*. The ! means 'not' and the *... (2 Replies)
Discussion started by: Lost in Cyberia
2 Replies
3. Shell Programming and Scripting
Hi all,
I have a variable which is having the value like below,
$ echo ${p}
8 15 22 30
$
My requirement is that the variable should return true when it contains only one number like below,
$ echo ${p}
15
$
Otherwise, it should return false if it contains more than one number.
I... (4 Replies)
Discussion started by: raghu.iv85
4 Replies
4. Shell Programming and Scripting
Hi
Lets say I have two arrays:
VAR_1 = "File_A" "File_B" "File_C" "File_D"
VAR_2 = "File_A" "File_D"
Is there a simple command to get the difference of these list, i.e.
VAR_1_2 = "File_B" "File_C"
or do I have to write a script and loop through all elements and compare them one by one?
... (1 Reply)
Discussion started by: Wernfried
1 Replies
5. Shell Programming and Scripting
Hi everyone,
I read some shell script code,then I have some issue.
the following code.
let "t1 = ((5 + 3, 7 - 1, 15 - 4))"
echo "t1 = $t1"
t1=11
Here t1 is set to the result of the last operation.why? (3 Replies)
Discussion started by: luoluo
3 Replies
6. Shell Programming and Scripting
I really don't know the meaning of these operators. Could someone explain the meanings so I can make my test for today?
<, <=, ==, !=, >=, >,
||, &&, ! ~ , !~
Thanks! (1 Reply)
Discussion started by: Erjen
1 Replies
7. Shell Programming and Scripting
Hi All,
I have 2 variables. Result1 and Result2. I want to put a condition that if Both are True then echo "All True" Else Show Error.
Right now i am doing this and getting error.
if ;
then
echo "All True"
else
echo "Failed"
fi;
Error.
line 8: '
Solution: Looking for (2 Replies)
Discussion started by: mkashif
2 Replies
8. UNIX for Dummies Questions & Answers
I am trying to understand
Does the following:
{tmp+=$10}
Mean take $10 and add them all up and call it tmp
thanks! (2 Replies)
Discussion started by: llsmr777
2 Replies
9. UNIX for Dummies Questions & Answers
Hello,
I have a list of 'inputs' and i want to convert those on the second list named 'Desired Outputs', but i don't know how to do it?
Inputs Desired Outputs
1 2
94 4
276 8
369 10
464 12 ... (0 Replies)
Discussion started by: filda
0 Replies
