用于nginx中chroot管理的shell脚本

#!/bin/bash
set -e
# 设置 CHROOT 目录名称
BASE="/nginx"
file="$@"
 
sync_suppot_libs(){
 local d="$1"          # JAIL ROOT
 local pFILE="$2"        # copy bin file libs
 local files=""
 local _cp="/bin/cp"
 
 # get rid of blanks and (0x00007fff0117f000)
 files="$(ldd $pFILE |  awk '{ print $3 }' | sed -e '/^$/d' -e '/(*)$/d')"
 
 for i in $files
 do
   dcc="${i%/*}" # get dirname only
   [ ! -d ${d}${dcc} ] && mkdir -p ${d}${dcc}
   ${_cp} -f $i ${d}${dcc}
 done
 
 # Works with 32 and 64 bit ld-linux
 sldl="$(ldd $pFILE | grep 'ld-linux' | awk '{ print $1}')"
 sldlsubdir="${sldl%/*}"
 [ ! -f ${d}${sldl} ] && ${_cp} -f ${sldl} ${d}${sldlsubdir}
}
 
usage(){
 echo "Syntax : $0 /usr/local/nginx/sbin/nginx"
 echo "Example: $0 /usr/bin/php5-cgi"
 exit 1
}
 
[ $# -eq 0 ] && usage
[ ! -d $BASE ] && mkdir -p $BASE
 
# 复制所有文件
for f in $file
do
 sync_suppot_libs "${BASE}" "${f}"
done