查看linux下进程的环境变量

AH-3f7440:/tmp/root# ps | grep dhcpc
 9528 root     47976 S    /opt/ah/bin/dhcpc
10595 root      2796 S    grep dhcpc
AH-3f7440:/tmp/root# tr "" "
" < /proc/9528/environ
USER=root
LD_LIBRARY_PATH=/lib:/usr/lib:/usr/local/lib:/opt/ah/lib
OLDPWD=/usr/local/var2/www
HOME=/
cache-sram-size=0x10000
TERM=vt102
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/ah/bin:/opt/ah/sbin
SHELL=/bin/sh
PWD=/
AH_BOARD=HELIX
WRITEFD=46
AH-3f7440:/tmp/root#