首先，我们的开发环境刚刚升级到 RHEL 7.5 (Maipo)，我们之前使用的是 Oracle Solaris 10。一旦我们从 Solaris 切换到 Red Hat，这个问题就开始了。下面的 Korn shell 脚本在生产中可以正常工作，但仍在 Solaris 10 上。所以我假设这与该问题有关。正在压缩和下载的 zip 文件不会保存到 zip 文件夹中。当我打开桌面上刚刚下载的 zip 文件夹时，zip 文件夹是空的。
下图显示了文件列表。用户将为要下载的文件选中一个复选框，然后单击压缩和下载链接，它应该会压缩这些选定的文件并将其保存到您的桌面。不幸的是，zip 文件夹是空的。有什么想法可能是什么问题吗？
这是下面被调用的 shell 脚本：
1 #!/bin/ksh
2 #
3 # Utility to zip up files in the configuration_aerodynamic_properties area.
4 # Script takes two arguments the directory and the file list.
5 # The file list is tab seperated.
6 # This script returns the zip file.
7 #
8 # $Log: vmdb_zip_files.sh,v $
9 # Revision 1.4 2014/10/21 19:53:31 wmorris1
10 # ASR 13563 - Change incorrect mime type text/text to text/plain.
11 #
12 # Revision 1.3 2012/04/30 18:46:03 wmorris1
13 # ASR 12774 - Fix SSL and IE issue found after going to SSL.
14 #
15 # Revision 1.2 2004/11/11 12:49:33 bmorris
16 # ASR 55414 - removed UNIX groups for zipped file.
17 #
18 # Revision 1.1 2004/10/18 20:10:32 bmorris
19 # Initial revision
20 #
21 #set -x
22 #set -v
23 function error_message {
24 echo "Content-Type: text/plain;"
25 echo "Content-Disposition: attachment; filename=\"download_error.txt\";"
26 COMMAND="unix2dos "
27 echo ""
28 echo "$(${COMMAND} <<-EOF
29 Error: $1
30
31 EOF
32 )"
33 }
34 if [ "$#" -lt 2 ]; then
35 error_message "Insufficient arguments to $(basename $0)!"
36 return 1
37 fi
38 CONTENT="application/x-zip-compressed"
39 # Parse the directory path.
40 # Internal Field Sep (IFS) empty, cause spaces in file names, directories are important
41 IFS=$""
42 FULL_DIRECTORY_PATH=$(echo "${1}" | tr -d '~\\')
43 # File lists are seperated by tabs, parse them
52 IFS=$(printf '\t')
53 set -A FILE_LIST ${2}
54 # Make each of the file parameters in the file list protected.
55 let count=0
56 while (( $count < ${#FILE_LIST[*]} )); do
57 FILE_LIST[count]="\"${FILE_LIST[count]}\""
58 let count="count +1"
59 done
60 # Reset the IFS to the default.
61 IFS=$(echo " \n\t")
62 if [[ -n $3 ]]; then
63 WEB_FILENAME="$3"
64 fi
65 # Don't let the user download stuff.
66 if [[ "${1}" = *..* ]] || [[ "${1}" = *~* ]] || [[ "${2}" = *..* ]] || [[ "${2}" = *~* ]]; then
67 error_message "Path ${1}/${2} violates security."
68 return 1
69 elif [[ ! -f ${FULL_DIRECTORY_PATH} ]] && [[ ! -d ${FULL_DIRECTORY_PATH} ]]; then
70 error_message "${FULL_FILE_PATH} does not exist or is not regular."
71 return 1
72 elif [[ ! -r ${FULL_DIRECTORY_PATH} ]]; then
73 error_message "${FULL_FILE_PATH} is not readable from the web."
74 return 1
75 fi
76 # Zip up the f
79 COMMAND="cd \"${FULL_DIRECTORY_PATH}\"; zip -rX - ${FILE_LIST[*]}"
82 echo "Content-Type: ${CONTENT};"
83 if [[ -z $HTTP_USER_AGENT || $HTTP_USER_AGENT != *MSIE* ]]; then
84 # IE Can't handle ssl and zip files
85 echo "Pragma:no-cache"
86 fi
87
88 echo ""
98 eval "$COMMAND"
我使用 set -x 进行调试，这是来自服务器的错误日志：
cat vmdb_zip_files_8862.err
+ [ 3 -lt 2 ]
+ CONTENT=application/x-zip-compressed
+ IFS=''
+ tr -d '~\\'
+ echo /isweb/www/ss/issapt/vmdb/data_downloads/power_export
+ FULL_DIRECTORY_PATH=/isweb/www/ss/issapt/vmdb/data_downloads/power_export
+ printf '\t'
+ IFS=$'\t'
+ set -A FILE_LIST flight_dependent_heater_data_443949.txt flight_dependent_data_443949.txt
+ let count=0
+ (( 0 < 2 ))
+ FILE_LIST[0]='"flight_dependent_heater_data_443949.txt"'
+ let count='count +1'
+ (( 1 < 2 ))
+ FILE_LIST[1]='"flight_dependent_data_443949.txt"'
+ let count='count +1'
+ (( 2 < 2 ))
+ echo ' \n\t'
+ IFS=' \n\t'
+ [[ -n power_export.zip ]]
+ WEB_FILENAME=power_export.zip
+ [[ /isweb/www/ss/issapt/vmdb/data_downloads/power_export == *..* ]]
+ [[ /isweb/www/ss/issapt/vmdb/data_downloads/power_export == *~* ]]
+ [[ $'flight_dependent_heater_data_443949.txt\tflight_dependent_data_443949.txt' == *..* ]]
+ [[ $'flight_dependent_heater_data_443949.txt\tflight_dependent_data_443949.txt' == *~* ]]
+ [[ ! -f /isweb/www/ss/issapt/vmdb/data_downloads/power_export ]]
+ [[ ! -d /isweb/www/ss/issapt/vmdb/data_downloads/power_export ]]
+ [[ ! -r /isweb/www/ss/issapt/vmdb/data_downloads/power_export ]]
+ COMMAND='cd "/isweb/www/ss/issapt/vmdb/data_downloads/power_export"; zip -rX - "flight_dependent_heater_data_443949.txt" "flight_dependent_data_443949.txt"'
+ echo 'Content-Type: application/x-zip-compressed;'
+ [[ -z 'Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko' ]]
+ [[ 'Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko' != *MSIE* ]]
+ echo Pragma:no-cache
+ echo ''
+ eval 'cd "/isweb/www/ss/issapt/vmdb/data_downloads/power_export"; zip -rX - "flight_dependent_heater_data_443949.txt" "flight_dependent_data_443949.txt"'
+ cd /isweb/www/ss/issapt/vmdb/data_downloads/power_export
+ zip -rX - flight_dependent_heater_data_443949.txt flight_dependent_data_443949.txt
eval: zip: cannot execute [Exec format error]
不确定 zip 是通过包安装还是手动编译，我必须询问 sys ops，但这是/usr/bin/zip给我的文件的输出/usr/bin/zip: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=747369bd1c41c4f8671a38f0055533a0c19a7769, stripped。至于命令uname -m给了我这个结果：x86_64
type 的输出为zip，zip is a tracked alias for /oraloc/app/product/11.2.0/client_1/bin/zip并且 的输出file $(which zip)如下/oraloc/app/product/11.2.0/client_1/bin/zip: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.4.0, not stripped。
的输出echo $PATH如下：/isdev/isapps/vmdb/tools/apache-maven-3.3.9/bin:/isdev/isapps/vmdb/tools/apache-ant-1.9.7/bin:/isdev/isapps/vmdb/runlib/current:/oraloc/app/product/11.2.0/client_1/bin:/oraloc/app/product/11.2.0/client_1/OPatch:/tools/ileaf.ileaf/sun4os5/lib:/tools/ghostscript/current/bin/:/tools/hp2xx/bin/:/usr/lib/lp/postscript/:/tools/ileaf.ileaf/bin/::/tools/gmake/3_79_1/bin:/tools/rcs/current/bin/:/bin:/usr/j2se/bin/:/tools/gcc/3_0_3/bin:/isdev/isapps/vmdb/tools/bin:/homedev/isdev2/cmarti35/tools/java/bin:/usr/sfw/bin:/bin:/usr/bin:/usr/contrib/bin:/usr/local/bin:/usr/bin/X11:/usr/bin/X11:/usr/dt/bin:/etc:/usr/etc:/opt/SUNWmotif/bin:/opt/SUNWspro/SC3.0/bin:/usr/ucb:/usr/sbin:/usr/ccs/bin:/tools/openssh/3.7.1p2/bin/:.:/usr/bin/X11
答案1
该命令type zip告诉您它将不会运行/usr/bin/zip，因此 的输出file /usr/bin/zip无关紧要。它正在使用 中的一个/oraloc/app/product/11.2.0/client_1/bin/，这是可疑的。
如果您/usr/bin/zip在脚本中使用 代替zip，它将修复它。
然而，从长远来看，问题是您的$PATH变量有很多优先考虑的特定于站点的内容（它首先尝试第一个目录，从左到右阅读）。该站点的某些特定内容配置错误。请参阅您的网站管理员。
答案2
ksh93 中有一个已知错误，当可执行文件完全没有问题时，该错误会导致此错误。 Solaris 10 使用这样古老的二进制文件，Korn Shell 是 ksh88（是的，1988 年），它没有这个错误。 Solaris 11 有 ksh93 并且确实有这个错误。 RHEL 当然使用 ksh93，因此存在错误，但 ISTR 他们对 RHEL7 有修复，Solaris 11 没有修复。