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problem is i have run som many processes that i cannot do fork anymore which means i am not able to do ps

Hello. I have code which create processes with fork(). I set a limit for processes by typing ulimit -u 20. Then I run my code who should create 100 processes. Unfortunately, I have a mistake there...

to radulov:
your code is notworking with print but with echo it worked but only in command line.
when i put it into script error occures with: unexpected token `('

yout code is working but only for lines without spaces...
e.g. var1='asd asd
fasd asd'
var2='das asd
f a '
result is:
asd das
fasd f

it concatenate only first words before space...

could just anyone explain me how to store the variable a in file open by exec? because there is a function paste which do everything i need but only with files...all would be solved if i can put...

CentOS

yes i do but i for input 2400 lines it worked really really long.....

it is the same error

to the script from shamrock an error occured:
line12: syntax error near unexpected token`&'
line12: `echo $var1|&'

yes both files have the sime number of lines. and \n is not written in variables...

16298 mmap2(NULL, 83186, PROT_READ, MAP_PRIVATE, 3, 0 <unfinished ...> 16298 <... mmap2 resumed> ) = 0xb7f71000 \n
16298 close(3 <unfinished ...>16298 <... close resumed> ) ...

16298 mmap2(NULL, 83186, PROT_READ, MAP_PRIVATE, 3, 0 <unfinished ...>
16299 <... brk resumed> ) = 0x8051000
16298 <... mmap2 resumed> ) = 0xb7f71000
16298 close(3...

I cannot use them. In my case it is forbidden to use them so I need to avoid it and make the solution fast enough (eg it should work for 4000 lines in a minute)

Hi.
I have an interesting problem and i couldn't find out the solution.
I have two variables in which there are a lot of lines finished by \n. I would like to concatenate this two variables into...