vick Julius wrote: > I have a text file I want to split. The file contains some sentences. > between sentences I have empty 1 line. I want to split this file and put > each sentence in a separate file with names 1, 2,3 ... > do you have any idea to split it such as with awk or split? You can't do it with split; that only handles the case where each contains a fixed number of bytes or lines. You can do it with awk easily enough, e.g.: #!/usr/bin/awk -f BEGIN { ofile = 0; } /^ *$/ { close(ofile); ofile++; } /[^ ]/ { print > ofile; } > Here is my strategy: > > I wrote a C program in which I call bash shell script to increment a > variable... > > In the shell I defined the variable k such as: > $export k=1 > in my bash script file,myFile, for testing, I put > echo $k > let k+=1 > (or this expression k=`expr $k + 1`) > echo $k > > when I run this script file, it gives me > 1 > 2 > > the problem is when I called form a C or C++ program, such > system("echo $k"); > //this gives 1 > system("./myFile"); > // this display > // 1 > //2 > system("echo $k"); > //here the problem, it display 1 not 2 > > I want to have the incremented value for k, i.e 2 not the original one. Each process has its own set of environment variables. A process can modify its own environment variables, but not those of another process. If you want to share state between processes, use a file. -- Glynn Clements <glynn.clements@xxxxxxxxxx> - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html