I need to schedule a shell script that runs at the command prompt to run with crontab. When I run this at the command prompt as follows it works:
echo /usr/test/script.sh date1 date2 y | at 20:00
But if I will pass these argument (date1, date2, Y) with in a shell script (say scr1.sh) and... (7 Replies)
Hi everyone!
I need some help with my shell script :(
I am sending a shell command from a html text input to a cgi. Then, I store it into a variable. For example
var="ps -axu"
echo `$var`
This functions properly. But consider the following...
var="ps -axu | grep root"
Now, I want... (2 Replies)
Hi, I have a accentuated letter (ö) in a script for an Installer. It's a file name. This is not working and I'm told to try using the octal value for the extended ascii character. Does anyone no how to do this? If I had the word "filförval", can I just put in the value between the letters, like... (9 Replies)
Can someone help me to write a script / command to read in a file, character by character, replace any unknown ASCII characters with space. then write out the file to a new filename/
Thanks! (1 Reply)
There's a JavaScript file that I call from command line (there's a framework) like so:
./RunDiag.js param1:'string one here' param2:'string two here'
I have a shell script where I invoke the above command. I can run it in a script as simple as this
#!/bin/bash
stuff="./RunDiag.js... (4 Replies)
I have a script that test for server up status.
I need to preserve the value of status between every run of the script.
test.sh
log=$(cat /tmp/log_status)
start loop
test for servers
print status for munin
etc
test=$(echo -e "${test}${status},")
end loop
echo $test >... (4 Replies)
Hi,
I have an input file like this
$ cat infile
hi,i,"am , sam", y
hello ,good, morning
abcd, " ef, gh " ,ij
no, "good,morning", yes, "good , afternoon"
from this file I have to split the fields on basis of comma"," however, I the data present inside double qoutes should be treated as... (3 Replies)
Hi All,
I am trying to read a file character by character,
#!/bin/bash
while read -n1 char; do
echo -e "$char\c"
done < /home/shak/testprogram/words
Newyork is a very good city.
Newyorkisaverygoodcityforliving
I need to preserve the spaces as thats an... (3 Replies)
Hi,
I would like to run following code in bash inside a zsh script. (In this case is output unfortunately very different if you run it in zsh).
I tried to put "bash" in front of the code but I obtained following error message "bash: do: No such file or directory
" eve though I merged the whole... (7 Replies)
I have bash shell script which is internally calling python script.I would like to know how long python is taking to execute.I am not allowed to do changes in python script.Please note i need to know execution time of python script which is getting executed inside shell .I need to store execution... (2 Replies)
Discussion started by: Adfire
2 Replies
LEARN ABOUT DEBIAN
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)