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Top Forums UNIX for Beginners Questions & Answers How to convert my /bin/sh script with cgi and html to run it on browser!?? Post 303039378 by Corona688 on Wednesday 2nd of October 2019 02:43:50 PM
Old 10-02-2019
One important thing to keep in mind with CGI. It doesn't run as you, it runs as the web server's user. Which means a CGI script doesn't -- AND SHOULDN'T! -- have permissions to write to the current folder, whatever it happens to be. You should create a file in a known writable location, like /tmp/$$-query.txt or some such. $$ is the script's PID, which is a quick and dirty way of getting a unique file name. (Once you have stuff working, see mktemp for a fancier, safer option.) And yes, you'll need to delete the file when you're done!

What's 'echo cat' for? If you want to cat, run cat. But you don't actually need cat here, grep (and most other commands) is fully capable of reading files without cat's help.

Also, you should be putting variables inside double quotes, and not putting * inside double quotes.

Code:
# Catch error messages so you see them in the web browser
exec 2>&1
# Check log files for 
grep "$XX" /opt/SUNWappserver/nodeagents/ins1/logs/* > /tmp/$$.txt 

...

rm /tmp/$$.txt

Lastly, does your web server have read-access to /opt/SUNWappserver/nodeagents/ins1/logs/* ? It'll need it.
 

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CAT(1)							      General Commands Manual							    CAT(1)

NAME
cat, read, nobs - catenate files SYNOPSIS
cat [ file ... ] read [ -m ] [ -n nline ] [ file ... ] nobs [ file ... ] DESCRIPTION
Cat reads each file in sequence and writes it on the standard output. Thus cat file prints a file and cat file1 file2 >file3 concatenates the first two files and places the result on the third. If no file is given, cat reads from the standard input. Output is buffered in blocks matching the input. Read copies to standard output exactly one line from the named file, default standard input. It is useful in interactive rc(1) scripts. The -m flag causes it to continue reading and writing multiple lines until end of file; -n causes it to read no more than nline lines. Read always executes a single write for each line of input, which can be helpful when preparing input to programs that expect line-at-a- time data. It never reads any more data from the input than it prints to the output. Nobs copies the named files to standard output except that it removes all backspace characters and the characters that precede them. It is useful to use as $PAGER with the Unix version of man(1) when run inside a win (see acme(1)) window. SOURCE
/src/cmd/cat.c /src/cmd/read.c /bin/nobs SEE ALSO
cp(1) DIAGNOSTICS
Read exits with status eof on end of file or, in the -n case, if it doesn't read nlines lines. BUGS
Beware of and which destroy input files before reading them. CAT(1)
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