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http://www.linuxquestions.org – dears I'm working on asterisk. i have followed this guide and it works fine http://www.asterisk.org/sites/asteri...tart_guide.pdf . the problem is that when I tried to excute a program using ./zoiper it shows me that : root@ubuntu:/usr/src# ./zoiper bash: ./zoiper: No such file or directory even though it shows me there is a file named "zoiper" in the directory am working in! with command ls -l it shows me -rwxr-xr-x 1 root root 15048176 Mar 27 2012 zoiper what do you think is the problem here? thanks in advance. (HowTos)