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strace sudo perl -MCPAN -e "install YAPE::Regex"
execve("/usr/bin/sudo", ["sudo", "perl", "-MCPAN", "-e", "install YAPE::Regex"], [/* 34 vars */]) = 0
uname({sys="Linux", node="phandaal", ...}) = 0
brk(0)                                  = 0x8062000
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fb2000
access("/etc/ld.so.nohwcap", F_OK)      = 0
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=90471, ...}) = 0
old_mmap(NULL, 90471, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f9b000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libpam.so.0", O_RDONLY)      = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\320\23"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=30456, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f9a000
old_mmap(NULL, 29316, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f92000
old_mmap(0xb7f99000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0xb7f99000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libdl.so.2", O_RDONLY)       = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240\v\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=7968, ...}) = 0
old_mmap(NULL, 10780, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f8f000
old_mmap(0xb7f91000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0xb7f91000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\306S\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1137372, ...}) = 0
old_mmap(NULL, 1143316, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e77000
old_mmap(0xb7f85000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10e000) = 0xb7f85000
old_mmap(0xb7f8c000, 8724, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7f8c000
close(3)                                = 0
munmap(0xb7f9b000, 90471)               = 0
geteuid32()                             = 1000
write(2, "sudo: ", 6sudo: )                   = 6
write(2, "must be setuid root", 19must be setuid root)     = 19
write(2, "\n", 1
)                       = 1
exit_group(1)                           = ?