最终确定是shell环境问题,临时改为/bin/bash即可查看.
1.问题现象
# su - jingyu
$ id
uid=503(jingyu) gid=507(jingyu) groups=507(jingyu)
$ ulimit -a
ulimit: Command not found.
2.临时切换为/bin/bash即可查看
$ echo $SHELL
/bin/csh
$ bash
$ 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) 15978
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 102400
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 15978
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
$