Hi everyone, I have problems with this script.
This script should check for a folder for each server in the list of the list.txt file.
The script only checks the first host, and then exits, why?
Code:
#!/bin/bash
file='/etc/list.txt'
while read line; do
echo $line
if ssh root@$line "stat /var > /dev/null 2>&1"; then
echo "File exists"
else
echo "File does not exist"
fi
done < $file
thank you very much for helping
n
Moderator's Comments:
Please use CODE tags as required by forum rules!
And, while you are at it, please use MEANINGFUL THREAD TITLES too. What is a title like "help script" (your title until i changed it) to tell a potential reader, hmm? All people coming to the "Shell Scripting" forum need help with their scripts, don't you think so?
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Discussion started by: Gurdza32
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LEARN ABOUT REDHAT
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)
03-29-2019
