Hi! Is there is any way to divide the screen when I use UNIX shells (I have RedHat 7.1)? I have to see the command promt and process some data from very long file at the same time (I work with PThreads). Some "pseudo-windows" in text mode, huh? =) Thanks in advance and don't be angry =) (4 Replies)
Hi ..
I have a file which contains a list of numbers like..
1923,1924,1925,1926,1927,1928,1929,1930,1931,1932,2015,2016,2017,2018,2019,2020,2021,2022,2023,2024,2025,2026,2027,
2028,2029,2030,2031,2032,2115,2116,2117,2118,2119,2120,2121,2122,2123,2124,2125,2126,2127,2128,2129,2130,2131,2132,... (2 Replies)
Hi All,
I have two variables like below..
ETIMEHR =03 #END TIME HOUR
ETIMEMIN=02 #END TIME MIN
Now I'm converting the min to hour by deviding it by 60
ETIMEMINCONV=`echo "scale=2; $ETIMEMIN/60" | bc`
but when i print ETIMEMINCONV instead of getting... (6 Replies)
Hello!
Im trying to divid the numbers inputed by <STDIN> by 2.
This is what I have:
print "The input array divided by 2 is as follows:\n"; foreach ((@userArray)/2) {print}
But it is not dividing by 2?
Any help is valuable!!
Ben (3 Replies)
Hi!
Is there an easy way (maybe using awk??) to divide the values of one column of the file by it's first entry..
If I have a column:
3
4
5
6
7
I would like to divide it by 3.
I want to do this for more than 100 files, so it wouldn't be practical to open file by file and... (26 Replies)
Hi,
I have a file containing 28048 lines and I would like to split it into a a file with 3506 lines and 8 columns?
In column 1, I would like to have the first 3506 lines, in columns 2 the second 3506 lines and so on.
I've been looking around in the forum but I found very specific cases.
Is... (1 Reply)
Hi,
I do have a very simple task to divide 2 variables and display the result.
I CANNOT use bc
when i try
var1=2
var2=4
var3=$(($var1 / $var2))
echo $var3
the output is always 0
What can I change to get a dotted decimal result such as 0.5 ?
Thanks! (5 Replies)
Hi,
I have written this code the division of two numbers and multiply it by hundred (to get the percent)
echo "script running for the 1st time"
cp value_directory_present.txt /home/mysql_cnbc/value_directory_past.txt
rm -f test6.txt value_directory_present.txt
else
y1=`awk '{print $1}'... (5 Replies)
Hello,
I am using Awk in UBUNTU 12.04.
I have a file as follows, the first column represents the name of populations, in my real file, I have 47 populations and 2172 lines in total with about 47000 fields.
ABO_1 1 2
ABO_1 1 2
ABO_2 1 1
GPO_1 1 1
GPO_1 2 2
GPO_2 1 0
GPO_2 2 0
I want... (3 Replies)
Hi!
I have a file as below:
0.000145 5.82056e-08
0.000146 6.82088e-08
0.000150 7.42115e-08
0.000156 8.52142e-08
0.000176 8.82169e-08
0.000178 9.82197e-08
I'd like to divide the values of the second column by its last entry (here 9.82197e-08).
I would be thankful if someone could... (6 Replies)
Discussion started by: Setareh12
6 Replies
LEARN ABOUT BSD
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)