From the UNIX (HP-UX 11.11) command prompt (if I do not have...

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Question by Jaunine
Submitted on 1/19/2004
Related FAQ: Unix Programming FAQ (v1.37)
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From the UNIX (HP-UX 11.11) command prompt (if I do not have a file no.txt), I type the following command: mv no.txt yes.txt Here is the result: mv: no.txt: cannot access: No such file or directory Here is the problem: I run this command via a C program, using popen(), using the following lines of code (this is only a snippet of my C code): int stat; fptr = popen(cmdbuf, "r"); strcpy(cmdbuf,"mv no.txt yes.txt"); stat = pclose(fptr); printf("Value for WEXITSTATUS: %d\n", WEXITSTATUS(stat)); printf("Value for errno: %d: %s\n", stat); printf("Error description: ... %s ...\n", strerror(stat)); The result when I run this program: Value for WEXITSTATUS: 1 Value for errno: 256 Error description: ... ... Can anybody please tell me how I can retrieve the correct error description? It should thus say the following: Value for WEXITSTATUS: 1 Value for errno: 256 Error description: ... mv: no.txt: cannot access: No such file or directory ... Help would be MUCH appreciated. Thanks!

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