[SLACK 10] erreur de man

bash-2.05b$ echo $PATH$
/opt/kde/bin/:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/usr/games:/opt/kde/bin:/usr/local/kde/bin/:/usr/lib/java/bin:/usr/lib/java/jre/bin:/usr/lib/qt/bin:.

bash-2.05b# updatedb
bash-2.05b# locate lesspipe.sh
/usr/bin/lesspipe.sh

...
SIG_DFL}, 8) = 0
rt_sigaction(SIGWINCH, {0x8058a80, [WINCH], SA_RESTORER|SA_RESTART, 0xb7e98078},                                                                  {SIG_DFL}, 8) = 0
pipe([4, 5])                            = 0
vfork()                                 = 8971
close(5)                                = 0
read(4, /bin/bash: line 1: lesspipe.sh: command not found
"", 1)                          = 0
close(4)                                = 0
wait4(8971, [{WIFEXITED(s) && WEXITSTATUS(s) == 127}], 0, NULL) = 8971
--- SIGCHLD (Child exited) @ 0 (0) ---
stat64("/var/log/dmesg", {st_mode=S_IFREG|0644, st_size=13066, ...}) = 0
stat64("/var/log/dmesg", {st_mode=S_IFREG|0644, st_size=13066, ...}) = 0
open("/var/log/dmesg", O_RDONLY|O_LARGEFILE) = 4
_llseek(4, 1, [1], SEEK_SET)            = 0
_llseek(4, 0, [0], SEEK_SET)            = 0
read(4, "Linux version 2.6.8.1-mm1 (root@"..., 64) = 64
brk(0)                                  = 0x8066000
brk(0x8067000)                          = 0x8067000
_llseek(4, 1, [1], SEEK_SET)            = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=13066, ...}) = 0
_llseek(4, 0, [0], SEEK_SET)            = 0
brk(0)                                  = 0x8067000
brk(0x8069000)                          = 0x8069000
write(1, "\0337\33[?47h\33=\33[24;1H\33[K", 20) = 20
fsync(3)                                = -1 EINVAL (Invalid argument)
ioctl(3, SNDCTL_TMR_STOP or TCSETSW, {B4800 -opost isig icanon -echo ...}) = -1                                                                  ENOTTY (Inappropriate ioctl for device)
exit_group(1)                           = ?

/usr/bin/less: symbolic link to `/usr/local/bin/less'

bash-2.05b$ file `which less`
/usr/local/bin/less: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), stripped

bash-2.05b# ldd /usr/bin/less
        libncurses.so.5 => /lib/libncurses.so.5 (0xb7f9e000)
        libc.so.6 => /lib/libc.so.6 (0xb7e6f000)
        libgpm.so.1 => /lib/libgpm.so.1 (0xb7e69000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0xb7fec000)

bash-2.05b# less .fluxbox/menu
sh: line 1: lesspipe.sh: command not found

bash-2.05b# man hdparm
Formatting page, please wait...
Error executing formatting or display command.
System command /bin/bzip2 -c -d /usr/man/cat8/hdparm.8.bz2 | /usr/bin/less -is exited with status 256.