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Hello ...I want to understand the basics of advance unix .that is about icp's,message queues, sockets..

.can anyone please provide me a good link which will explain about IPC etc.

I had a variable 1:80 8 in one varialbe say var=1:80 8

i comapred the below

if [ $var = "1:80 8" ]
then
--
else
----

thought if condition is true its always going in the...

i need to compare a varaiable with a constant "1:3 9".
variable can have values like "1:3 8" or "1:3 7" or "1:3 ?"

Thanks...

It Worked...but How To Include A Space In Between

iam sorry it it
grep `basename $fname | cut -c2-5` $STORE_LIST >> all
cat $fname >> all

i have the below script

grep `basename $fname | cut -c2-5` $STORE_LIST` >> all
cat $fname >> all

the output comes in two line..i want the same output above to come in single line ..can...

is it possible for u to tell me wat this implies

if i say 2>/dev/null --does it also mean the same..
and does & by any chance indicae bground process..

sorry to ask sucha silly questions..iam a beginner

hi,

i have written a small script in which i use exec command and redriect output to a file..after sometime i want to switch it off and redirect the output to screen..how to do it

exec >>...

thanks so much for ur help.

but can u tell me what exactly this means

/dev/null 2>&1 ---

Hi iam tryiing to do two things

1) in a directory i have files like t71,t81,t91....these files have a one line

i want to display the name of the files and contents of the file in one file

i...

hi,

Iam in directory A. I run a script from there. inside the script i have a command cd B.
When i come out of the script directory is A only.
Even when i come out scrip i want the directory to...

hi thanks locustfurnace

vgersh99 - sorry for asking this silly doubt

sed -e 's/[^;]//g' file |wc -c - this works fine no doubt,

but if i try

sed -e 's/;//g' file |wc -c - its not...

Thank u so much, this is what i want.
I also want to know if there is an operator << in unix and what does it do.

how to use the variable in the current process. thought i say export, i willl not be available in the current shell.
so how to run the shell in such a way that varible is available

great thanku..
but for FAQ, u have given this site itself.
Please can you provide me with any other sites which will be useful for me for tommorw interview

hi,

This is my first post....Hope u people will help me out
iam new to unix.

1)In a file i have something like this

fsdfsdf;
I need to find out totally how many semicolons are there. How...