$ strace -f -eexecve perl -e 'system("import -window root MyScreenshot.png")' execve("/usr/local/bin/perl", ["perl", "-e", "system(\"import -window root MySc"...], [/* 31 vars */]) = 0 Process 20945 attached (waiting for parent) Process 20945 resumed (parent 20944 ready) [pid 20945] execve("/home/almut/bin/import", ["import", "-window", "root", "MyScreenshot.png"], [/* 31 vars */]) = -1 ENOENT (No such file or directory) [pid 20945] execve("/usr/local/sbin/import", ["import", "-window", "root", "MyScreenshot.png"], [/* 31 vars */]) = -1 ENOENT (No such file or directory) [pid 20945] execve("/usr/local/bin/import", ["import", "-window", "root", "MyScreenshot.png"], [/* 31 vars */]) = -1 ENOENT (No such file or directory) [pid 20945] execve("/usr/sbin/import", ["import", "-window", "root", "MyScreenshot.png"], [/* 31 vars */]) = -1 ENOENT (No such file or directory) [pid 20945] execve("/usr/bin/import", ["import", "-window", "root", "MyScreenshot.png"], [/* 31 vars */]) = 0