It's probably eating the backslash since perl double-quotes evaluate those. You may need to escape the escaping. You'll probably also need to escape those $ in your awk, since perl evaluates those into variables, and escape the double-quotes i the awk statement, so perl won't mistake them for its own.
I remember writing Perl like that: Line after line after line of nothing but system() and backticks [because I wanted to avoid using the shell]. Eventually I noticed they were starting entire bourne shells just to parse one "mv a b" and was horrified -- by avoiding the shell I'd actually used eight of them consecutively
Returning much later, I rewrote some of these "perl" scripts as shell, making them much smaller, simpler, and saner.
---------- Post updated at 10:41 AM ---------- Previous update was at 10:39 AM ----------
Is ssh configured to login without a password, there? You'll probably need to tell it what key files to use with ssh -i /path/to/key. You'll need to give the key the right permissions so the webserver can read it, too.
---------- Post updated at 10:43 AM ---------- Previous update was at 10:41 AM ----------
You may also find it useful to redirect standard error into standard output so you can see error messages from shell programs instead of them all being swallowed by the web server. Unfortunately, while trivial in a shell exec 2>&1, that's extremely difficult in perl.
---------- Post updated at 10:52 AM ---------- Previous update was at 10:43 AM ----------
"right permissions" so a webserver can read it would probably be 0600 or 0400, owned by apache:root
Hi,
I have a shell script with code
. perf.env
cd $QRY_DIR
for SHELL_FILE in sql1
do
export SNAME=$SHELL_FILE
${SCRIPT_DIR}/perf_qry.sh ${SPOOL_DIR} ${DB_ENVNAME} ${NAME} &
RC=$(expr ${RC:-0} + $? )
sleep 60
if
then
echo sysdate>test1
echo query1.txt>>test1
grep -i... (0 Replies)
Hi,
I have a shell script with code
. perf.env
cd $QRY_DIR
for SHELL_FILE in sql1
do
export SNAME=$SHELL_FILE
${SCRIPT_DIR}/perf_qry.sh ${SPOOL_DIR} ${DB_ENVNAME} ${NAME} &
RC=$(expr ${RC:-0} + $? )
sleep 60
if
then
echo sysdate>test1
echo query1.txt>>test1
grep -i... (6 Replies)
Hi,
I want to run a crontab job on solaris 10.5. I have configured the crontab accordingly
10 * * * * /scripts/dbalter.pl >> /scripts/cronout.txt
However this does not work .Then I go to /var/mail/root and find an error in the output:
From root@myserver Wed Feb 4 17:02:00 2009... (1 Reply)
Hello everyone,
I have developed a cgi application on windows. i have created a folder in webapps of tomcat, within that a WEB-INF folder and in that cgi folder.
This cgi folder contains one executable. The web.xml is as follows: <servlet>
<servlet-name>cgi</servlet-name>
... (2 Replies)
I got the below error when using the below code...it seem that perl interpret the "'" in the middle and therefore the pipe is not finished.
perl -wle '
@a=`who| perl -wlane 'print \$F;' | sort -u` ;
chomp @a ;
print @a;
'
the error message in cygwin is:-
perl: No match.
| sort... (12 Replies)
Hi,
I am trying to implement a server monitoring dashboard using cgi scripting. I am planning to run the necessary unix scripts from the web page using cgi. This method works fine for standard unix commands but I am unable to run some external unix commands (like swadm show_processes, swadm... (9 Replies)
Can anyone tell me how to export a variable from one perl CGI script to another perl cgi script when using a redirect.
Upon running the login.pl the user is prompted to enter user name and password. Upon entering the correct credentials (admin/admin) the user is
redirected to welcome page.
My... (3 Replies)
Hi team,
I have a typical problem with cgi pages in apache webserver in WINDOWS
I am able to execute(display) the pages that are saved in cgi-bin folder.
But I am not able to execute the pages stored in htdocs or other folder other than cgi-bin folder.
Could anyone please let me know how... (1 Reply)
Hi All,
I have written an cgi perl script that displays an image(Excel image) and when clicked on that Image I need to download a excel sheet.
I made sure that excel sheet exists in the folder with the given name but still I am not able to download the sheet.
print "<center><table... (2 Replies)
I don't know to debug the program todaylive.pl program.
plz someone let me know what are the commands I need to know to debug the perl programs to find out the error on it. (3 Replies)
Discussion started by: ramkumar15
3 Replies
LEARN ABOUT PHP
escapeshellarg
ESCAPESHELLARG(3) 1 ESCAPESHELLARG(3)escapeshellarg - Escape a string to be used as a shell argumentSYNOPSIS
string escapeshellarg (string $arg)
DESCRIPTION escapeshellarg(3) adds single quotes around a string and quotes/escapes any existing single quotes allowing you to pass a string directly
to a shell function and having it be treated as a single safe argument. This function should be used to escape individual arguments to
shell functions coming from user input. The shell functions include exec(3), system(3) and the backtick operator.
On Windows, escapeshellarg(3) instead removes percent signs, replaces double quotes with spaces and adds double quotes around the string.
PARAMETERS
o $arg
- The argument that will be escaped.
RETURN VALUES
The escaped string.
EXAMPLES
Example #1
escapeshellarg(3) example
<?php
system('ls '.escapeshellarg($dir));
?>
SEE ALSO escapeshellcmd(3), exec(3), popen(3), system(3), backtick operator.
PHP Documentation Group ESCAPESHELLARG(3)