Hi ,
i am beginner to Unix, I have one small script which execute java programme,it has java command input output structure . Right now i have given Input output structure manually that is on same directory, now how can i pass that by commandline
#!/bin/sh
java Classjava input.txt... (5 Replies)
Hey guys, seems I can't transfer the $ip into gawk in the following bash script, where the problem is?
#!/bin/bash
while read ip
do
gawk '$1~"$ip"' /tmp/source
done < /tmp/ip
++
cat /tmp/ip
192.16.1.1|192.168.1.2|192.168.1.3
10.1.1.1|10.1.1.2
10.8.1.0|10.8.1.1|10.8.1.2
--
cat... (11 Replies)
HI ,
Is there any way to return a value of variable from shell to perl script.
Code:
===
Perl file
my $diff1=system("sh diff.sh");
my $diff2=system("sh diff1.sh");
I need exit status of below commands
i.e 0 and 1 respectively.
Since in both the cases diff is working so system... (3 Replies)
ok, so, i want to do something like this where i store results of codings in a variable, but when i run it, it doesn' twork:
example
HOT=34
BOSS=`john=133
if ; then
ADDIT=`expr 8 + 6`
case $HOT in
34) expr 4 + 5 ;; esac
fi`
it seems shell scripts have a problem with having ``... (2 Replies)
Dear All,
we have a command output which looks like :
Total 200 queues in 30000 Kbytes
and we're going to get "200" and "30000" for further process. currently, i'm using :
numA=echo $OUTPUT | awk '{print $2}'
numB=echo $OUTPUT | awk '{print $5}'
my question is : can I use just one... (4 Replies)
I have a shell script main.sh which inturn call the python script ofdm.py, I want to pass two variables from shell script to python script for its execution. How do i achieve this ?????
Eg:
main.sh
a=3 b=3;
c= a+b
exec python ofdm.py
ofdm.py
d=c+a
Thanks in Anticipation (4 Replies)
hi,
i have a text file which conatins some fields delimited by space. some fields contains * as entries.
cron_file.txt
0 * * * *
0 3 * * *
i want to read each line 1 by 1 and store each field in seperate variables n a shell script.
i am unable to read the field that contains a *. how... (3 Replies)
I have a shell script (.sh) and I want to pass a parameter value to the awk command but I am getting exception, please assist.
diff=$1$2.diff
id=$2 new=new_$diff
echo "My id is $1"
echo "I want to sync for user account $id"
##awk command I am using is as below
cat $diff | awk... (2 Replies)
I want to make a config file which contain all the paths.
i want to read the config file line by line and pass as an argument on my below function.
Replace all the path with reading config path line by line and pass in respective functions.
how can i achieve that?
Kindly guide.
... (6 Replies)
I have the following script, and I want to assign the output ($10 and $5) from awk to N and L:
grdinfo data.grd | awk '{print $10,$5}'| read N L
output from gridinfo data.grd is: data.grd 50 100 41 82 -2796 6944 0.016 0.016 3001 2461. where N and L is suppose to be 3001 and 100. I use... (8 Replies)
Discussion started by: geomarine
8 Replies
LEARN ABOUT X11R4
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)