command paste with variables


 
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# 1  
Old 03-27-2009
command paste with variables

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 one in this format:
var1[1st line]var2[1st line]
var1[2nd line]var2[2nd line]
.
.
.
I could do this simply by command paste but it works only with two files. The problem is that I cannot create any temporary files. I can use only variables. I searched everywhere and tried everything but without succes.
Hope sbdy find a solution.
Thanks a lot.
# 2  
Old 03-27-2009
Some shells support process substitution which is what you need in this case. Could you explain why you cannot use temporary files?
# 3  
Old 03-27-2009
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)
# 4  
Old 03-27-2009
Can you post sample of the input.
# 5  
Old 03-27-2009
This sounds like homework. If it is, please follow the forum rules(6).
# 6  
Old 03-27-2009
16298 mmap2(NULL, 83186, PROT_READ, MAP_PRIVATE, 3, 0 <unfinished ...>
16299 <... brk resumed> ) = 0x8051000
16298 <... mmap2 resumed> ) = 0xb7f71000
16298 close(3 <unfinished ...>
16299 access("/etc/ld.so.nohwcap", F_OK <unfinished ...>
16298 <... close resumed> ) = 0
16299 <... access resumed> ) = -1 ENOENT (No such file or directory)
# 7  
Old 03-27-2009
Post sample of output also there's no way I can figure out what the result should be.
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