[sb@comp- ~]$ strace -ff htop
execve("/usr/bin/htop", ["htop"], [/* 54 vars */]) = 0
brk(0)                                  = 0x8065000
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7826000
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=68699, ...}) = 0
mmap2(NULL, 68699, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7815000
close(3)                                = 0
open("/usr/lib/libncursesw.so.5", 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\320g\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=170304, ...}) = 0
mmap2(NULL, 173452, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb77ea000
fadvise64(3, 0, 173452, POSIX_FADV_WILLNEED) = 0
mmap2(0xb7813000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x28) = 0xb7813000
close(3)                                = 0
open("/lib/libtinfo.so.5", 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\0p_\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=92872, ...}) = 0
mmap2(NULL, 96280, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb77d2000
fadvise64(3, 0, 96280, POSIX_FADV_WILLNEED) = 0
mmap2(0xb77e7000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14) = 0xb77e7000
close(3)                                = 0
open("/lib/libm.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`4\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=165836, ...}) = 0
mmap2(NULL, 168064, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb77a8000
fadvise64(3, 0, 168064, POSIX_FADV_WILLNEED) = 0
mmap2(0xb77d0000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x27) = 0xb77d0000
close(3)                                = 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\360m\1\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1446164, ...}) = 0
mmap2(NULL, 1457256, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7644000
fadvise64(3, 0, 1457256, POSIX_FADV_WILLNEED) = 0
mprotect(0xb77a1000, 4096, PROT_NONE)   = 0
mmap2(0xb77a2000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15d) = 0xb77a2000
mmap2(0xb77a5000, 11368, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb77a5000
close(3)                                = 0
open("/usr/lib/libgpm.so.1", 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\340\27\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=22120, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7643000
mmap2(NULL, 25832, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb763c000
fadvise64(3, 0, 25832, POSIX_FADV_WILLNEED) = 0
mmap2(0xb7641000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4) = 0xb7641000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb763b000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb763b6c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xb7641000, 4096, PROT_READ)   = 0
mprotect(0xb77a2000, 8192, PROT_READ)   = 0
mprotect(0xb77d0000, 4096, PROT_READ)   = 0
mprotect(0xb77e7000, 8192, PROT_READ)   = 0
mprotect(0xb7813000, 4096, PROT_READ)   = 0
mprotect(0x8062000, 4096, PROT_READ)    = 0
mprotect(0xb7846000, 4096, PROT_READ)   = 0
munmap(0xb7815000, 68699)               = 0
access("/proc", R_OK)                   = 0
brk(0)                                  = 0x8065000
brk(0x8086000)                          = 0x8086000
open("/proc/stat", O_RDONLY)            = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7825000
read(3, "cpu  20778 966 5407 324809 27333"..., 1024) = 1024
close(3)                                = 0
munmap(0xb7825000, 4096)                = 0
open("/home/sb/.htoprc", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=561, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7825000
read(3, "# Beware! This file is rewritten"..., 4096) = 561
read(3, "", 4096)                       = 0
close(3)                                = 0
munmap(0xb7825000, 4096)                = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
getuid32()                              = 500
geteuid32()                             = 500
getgid32()                              = 500
getegid32()                             = 500
getuid32()                              = 500
geteuid32()                             = 500
getuid32()                              = 500
geteuid32()                             = 500
getgid32()                              = 500
getegid32()                             = 500
getuid32()                              = 500
geteuid32()                             = 500
getuid32()                              = 500
geteuid32()                             = 500
getgid32()                              = 500
getegid32()                             = 500
getuid32()                              = 500
geteuid32()                             = 500
stat64("/lib/terminfo", {st_mode=S_IFDIR|0755, st_size=288, ...}) = 0
access("/lib/terminfo/x/xterm", R_OK)   = 0
open("/lib/terminfo/x/xterm", O_RDONLY|O_LARGEFILE) = 3
read(3, "\32\0010\0&\0\17\0\235\1l\5xterm|xterm terminal"..., 4097) = 3258
close(3)                                = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
brk(0x80a7000)                          = 0x80a7000
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, SNDCTL_TMR_STOP or SNDRV_TIMER_IOCTL_GINFO or TCSETSW, {B38400 opost isig -icanon echo ...}) = 0
ioctl(1, SNDCTL_TMR_STOP or SNDRV_TIMER_IOCTL_GINFO or TCSETSW, {B38400 opost isig -icanon -echo ...}) = 0
rt_sigaction(SIGTSTP, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGTSTP, {0xb7802e40, [], SA_RESTART}, NULL, 8) = 0
rt_sigaction(SIGINT, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGINT, {0xb7802d40, [], SA_RESTART}, NULL, 8) = 0
rt_sigaction(SIGTERM, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGTERM, {0xb7802d40, [], SA_RESTART}, NULL, 8) = 0
rt_sigaction(SIGWINCH, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGWINCH, {0xb7802d20, [], 0}, NULL, 8) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig -icanon -echo ...}) = 0
ioctl(1, SNDCTL_TMR_STOP or SNDRV_TIMER_IOCTL_GINFO or TCSETSW, {B38400 opost isig -icanon -echo ...}) = 0
ioctl(1, SNDCTL_TMR_STOP or SNDRV_TIMER_IOCTL_GINFO or TCSETSW, {B38400 opost isig -icanon -echo ...}) = 0
   ) = 23  write(1, "\33[?1049h\33[1;24r\33(B\33[m\33[4l\33[?7h\33["..., 37
ioctl(1, SNDCTL_TMR_STOP or SNDRV_TIMER_IOCTL_GINFO or TCSETSW, {B38400 opost isig icanon echo ...}) = 0
exit_group(0)                           = ?