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/Bash debug output

Created June 8, 2016 15:53
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Raw
Bash debug output
$ ls | grep a |grep b | grep c
++ history_to_syslog
++ declare cmd
+++ whoami
++ who=pgr21
+++ history 1
++ cmd='16612 2016-06-08 15:57:07 ls | grep a |grep b | grep c'
+++ tty
++ TTY=/dev/pts/0
+++ basename /dev/pts/0
++ HISNAME=0
+++ detecting pts/0
+++ cut -f 2 -d '('
+++ user_who
+++ cut -f 1 -d ')'
++ ip=141.223.84.43
++ logger -p local7.notice -- IP=141.223.84.43 USER=pgr21, PID=12299, PWD=/home/pgr21, CMD =16612 2016-06-08 15:57:07 ls '|' grep a '|grep' b '|' grep c
++ history_to_syslog
++ declare cmd
+++ whoami
+ ls -hF --color=auto
++ who=pgr21
+++ history 1
++ cmd='16612 2016-06-08 15:57:07 ls | grep a |grep b | grep c'
+++ tty
++ TTY=/dev/pts/0
+++ basename /dev/pts/0
-bash: child setpgid (13582 to 13575): Operation not permitted
++ HISNAME=0
-bash: child setpgid (13584 to 13575): Operation not permitted
+++ user_who
-bash: child setpgid (13585 to 13575): Operation not permitted
+++ detecting pts/0
-bash: child setpgid (13586 to 13575): Operation not permitted
+++ cut -f 2 -d '('
-bash: child setpgid (13587 to 13575): Operation not permitted
+++ cut -f 1 -d ')'
++ ip=141.223.84.43
++ logger -p local7.notice -- IP=141.223.84.43 USER=pgr21, PID=12299, PWD=/home/pgr21, CMD =16612 2016-06-08 15:57:07 ls '|' grep a '|grep' b '|' grep c
++ history_to_syslog
++ declare cmd
+++ whoami
+ grep a
++ who=pgr21
+++ history 1
++ cmd='16612 2016-06-08 15:57:07 ls | grep a |grep b | grep c'
+++ tty
-bash: child setpgid (13594 to 13589): Operation not permitted
++ TTY=/dev/pts/0
+++ basename /dev/pts/0
-bash: child setpgid (13596 to 13589): Operation not permitted
++ HISNAME=0
-bash: child setpgid (13598 to 13589): Operation not permitted
+++ user_who
-bash: child setpgid (13599 to 13589): Operation not permitted
-bash: child setpgid (13600 to 13589): Operation not permitted
+++ cut -f 2 -d '('
-bash: child setpgid (13601 to 13589): Operation not permitted
+++ cut -f 1 -d ')'
+++ detecting pts/0
++ ip=141.223.84.43
++ logger -p local7.notice -- IP=141.223.84.43 USER=pgr21, PID=12299, PWD=/home/pgr21, CMD =16612 2016-06-08 15:57:07 ls '|' grep a '|grep' b '|' grep c
++ history_to_syslog
++ declare cmd
+++ whoami
+ grep b
++ who=pgr21
+++ history 1
++ cmd='16612 2016-06-08 15:57:07 ls | grep a |grep b | grep c'
+++ tty
-bash: child setpgid (13608 to 13603): Operation not permitted
++ TTY=/dev/pts/0
+++ basename /dev/pts/0
-bash: child setpgid (13610 to 13603): Operation not permitted
++ HISNAME=0
-bash: child setpgid (13612 to 13603): Operation not permitted
+++ user_who
-bash: child setpgid (13613 to 13603): Operation not permitted
-bash: child setpgid (13614 to 13603): Operation not permitted
-bash: child setpgid (13615 to 13603): Operation not permitted
+++ cut -f 2 -d '('
+++ cut -f 1 -d ')'
+++ detecting pts/0
++ ip=141.223.84.43
++ logger -p local7.notice -- IP=141.223.84.43 USER=pgr21, PID=12299, PWD=/home/pgr21, CMD =16612 2016-06-08 15:57:07 ls '|' grep a '|grep' b '|' grep c
+ grep c
+++ history_to_syslog
+++ declare cmd
++++ whoami
+++ who=pgr21
++++ history 1
+++ cmd='16612 2016-06-08 15:57:07 ls | grep a |grep b | grep c'
++++ tty
+++ TTY=/dev/pts/0
++++ basename /dev/pts/0
+++ HISNAME=0
++++ detecting pts/0
++++ cut -f 2 -d '('
++++ cut -f 1 -d ')'
++++ user_who
+++ ip=141.223.84.43
+++ logger -p local7.notice -- IP=141.223.84.43 USER=pgr21, PID=12299, PWD=/home/pgr21, CMD =16612 2016-06-08 15:57:07 ls '|' grep a '|grep' b '|' grep c
++ printf '\033]0;%s@%s:%s\007' pgr21 pgr21 '~'
Raw
Command with cleared environment
env -i ls | grep a | grep b | grep c | grep d
-bash: child setpgid (13335 to 13330): Operation not permitted
-bash: child setpgid (13337 to 13330): Operation not permitted
-bash: child setpgid (13339 to 13330): Operation not permitted
# Sometimes no error, sometimes error.
Raw
Debug trap
$ trap -p
trap -- 'history_to_syslog' DEBUG
Raw
Logging
$ type log
-bash: type: log: not found
Raw
Strace
$ strace ls | grep a | grep b | grep c | grep d
execve("/bin/ls", ["ls"], [/* 22 vars */]) = 0
brk(0) = 0x8343000
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=35159, ...}) = 0
mmap2(NULL, 35159, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f61000
close(3) = 0
open("/lib/librt.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\200\210\255\0004\0\0\0"..., 512) = 512
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f60000
fstat64(3, {st_mode=S_IFREG|0755, st_size=48156, ...}) = 0
mmap2(0xad7000, 33324, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xad7000
mmap2(0xade000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7) = 0xade000
close(3) = 0
open("/lib/libacl.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@\242\254\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=25660, ...}) = 0
mmap2(0xac9000, 27008, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xac9000
mmap2(0xacf000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5) = 0xacf000
close(3) = 0
open("/lib/libselinux.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\240U\256\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=93508, ...}) = 0
mmap2(0xae2000, 97120, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xae2000
mmap2(0xaf8000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15) = 0xaf8000
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 \300\222\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1706208, ...}) = 0
mmap2(0x916000, 1422788, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x916000
mmap2(0xa6c000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x156) = 0xa6c000
mmap2(0xa6f000, 9668, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xa6f000
close(3) = 0
open("/lib/libpthread.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\0p\370\247\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=137944, ...}) = 0
mmap2(0xa7b000, 102884, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xa7b000
mmap2(0xa91000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15) = 0xa91000
mmap2(0xa93000, 4580, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xa93000
close(3) = 0
open("/lib/libattr.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\200+\254\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=15780, ...}) = 0
mmap2(0xac2000, 17056, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xac2000
mmap2(0xac6000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3) = 0xac6000
close(3) = 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\0pJ\247\0004\0\0\0"..., 512) = 512
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f5f000
fstat64(3, {st_mode=S_IFREG|0755, st_size=20668, ...}) = 0
mmap2(0xa74000, 16504, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xa74000
mmap2(0xa77000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2) = 0xa77000
close(3) = 0
open("/lib/libsepol.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@\357\257\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=245376, ...}) = 0
mmap2(0xafc000, 285024, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xafc000
mmap2(0xb37000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3b) = 0xb37000
mmap2(0xb38000, 39264, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb38000
close(3) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f5e000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb7f5e8e0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xade000, 4096, PROT_READ) = 0
mprotect(0xa6c000, 8192, PROT_READ) = 0
mprotect(0xa91000, 4096, PROT_READ) = 0
mprotect(0x912000, 4096, PROT_READ) = 0
mprotect(0xa77000, 4096, PROT_READ) = 0
munmap(0xb7f61000, 35159) = 0
set_tid_address(0xb7f5e928) = 13235
set_robust_list(0xb7f5e930, 0xc) = 0
futex(0xbfcaba94, FUTEX_WAKE_PRIVATE, 1) = 0
rt_sigaction(SIGRTMIN, {0xa7f400, [], SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0xa7f300, [], SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=10240*1024, rlim_max=RLIM_INFINITY}) = 0
uname({sys="Linux", node="pgr21.com", ...}) = 0
access("/etc/selinux/", F_OK) = 0
brk(0) = 0x8343000
brk(0x8364000) = 0x8364000
open("/etc/selinux/config", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=511, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f69000
read(3, "# This file controls the state o"..., 4096) = 511
read(3, "", 4096) = 0
close(3) = 0
munmap(0xb7f69000, 4096) = 0
open("/proc/mounts", O_RDONLY|O_LARGEFILE) = 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) = 0xb7f69000
read(3, "rootfs / rootfs rw 0 0\n/dev/root"..., 1024) = 820
read(3, "", 1024) = 0
close(3) = 0
munmap(0xb7f69000, 4096) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbfcab908) = -1 EINVAL (Invalid argument)
ioctl(1, TIOCGWINSZ, 0xbfcaba04) = -1 EINVAL (Invalid argument)
open(".", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
getdents64(3, /* 37 entries */, 32768) = 1144
getdents64(3, /* 0 entries */, 32768) = 0
close(3) = 0
fstat64(1, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f69000
write(1, "2015-08-26_pgr21_db\netc\nhtml\nkon"..., 109) = 109
close(1) = 0
munmap(0xb7f69000, 4096) = 0
exit_group(0) = ?
Raw
Ulimit
$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 129094
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 129094
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
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