A comprehensive survey of incompatibilities between Bash and the classic Bourne shell.
Same as above, but for the Korn shell (ksh).
A primer on CGI programming, using Bash.
Here's a simple CGI script to get you started.
Example P-1. Print the server environment
1 #!/bin/bash 2 # May have to change the location for your site. 3 # (At the ISP's servers, Bash may not be in the usual place.) 4 # Other places: /usr/bin or /usr/local/bin 5 # Might even try it without any path in sha-bang. 6 7 # test-cgi.sh 8 # by Michael Zick 9 # Used with permission 10 11 12 # Disable filename globbing. 13 set -f 14 15 # Header tells browser what to expect. 16 echo Content-type: text/plain 17 echo 18 19 echo CGI/1.0 test script report: 20 echo 21 22 echo environment settings: 23 set 24 echo 25 26 echo whereis bash? 27 whereis bash 28 echo 29 30 31 echo who are we? 32 echo ${BASH_VERSINFO[*]} 33 echo 34 35 echo argc is $#. argv is "$*". 36 echo 37 38 # CGI/1.0 expected environment variables. 39 40 echo SERVER_SOFTWARE = $SERVER_SOFTWARE 41 echo SERVER_NAME = $SERVER_NAME 42 echo GATEWAY_INTERFACE = $GATEWAY_INTERFACE 43 echo SERVER_PROTOCOL = $SERVER_PROTOCOL 44 echo SERVER_PORT = $SERVER_PORT 45 echo REQUEST_METHOD = $REQUEST_METHOD 46 echo HTTP_ACCEPT = "$HTTP_ACCEPT" 47 echo PATH_INFO = "$PATH_INFO" 48 echo PATH_TRANSLATED = "$PATH_TRANSLATED" 49 echo SCRIPT_NAME = "$SCRIPT_NAME" 50 echo QUERY_STRING = "$QUERY_STRING" 51 echo REMOTE_HOST = $REMOTE_HOST 52 echo REMOTE_ADDR = $REMOTE_ADDR 53 echo REMOTE_USER = $REMOTE_USER 54 echo AUTH_TYPE = $AUTH_TYPE 55 echo CONTENT_TYPE = $CONTENT_TYPE 56 echo CONTENT_LENGTH = $CONTENT_LENGTH 57 58 exit 0 59 60 # Here document to give short instructions. 61 :<<-'_test_CGI_' 62 63 1) Drop this in your http://domain.name/cgi-bin directory. 64 2) Then, open http://domain.name/cgi-bin/test-cgi.sh. 65 66 _test_CGI_ |
Any volunteers?