Hi unix gurus,
I am trying to store the result of a command into a variable.
But it is not getting stored.
x='hello'
y=echo $x | wc -c
but it is giving the output as 0(zero)
Pls help me its very urgent (7 Replies)
I'm writing a bash shell script to backup several mysql databases. This script will run on a daily basis and send a copy to a remote FTP repository. The filenames are in the format DATE.backup.sql. How do I store the DATE variable so I can delete/move/etc the file on the FTP server the next time... (4 Replies)
Hi
I'm trying to find a way to search a text file for a specific string.
I have a file which contains i.p. addresses and port numbers in the following format:
'ip="www.xxx.yyy.zzz"'
'port="xx""'
I want to print only the parts between the double quotes for use in seperate variables,... (4 Replies)
how would i go about storing this command in a variable
echo "$LINE" | awk -F"|" '{print $1"|"$2"|"$3"}'
i have tried FOO = ${command up there} but receive the error FOO: not found
aswell as a couple of other attempt but no luck (2 Replies)
Hi Everyone,
I have a code which requires to be stored in different variables and I am achiving it like this.
HOST=`echo $RMP | cut -f2 -d:`
NAME=`echo $RMP | cut -f3 -d:`
DIR=`echo $RMP | cut -f4 -d:`
TYPE=`echo $RMP | cut -f5 -d:`
Is there any other way of storing value... (2 Replies)
Hi all,
I m new to this forum.
I ma facing onei issue.
I have something like this:
length= wc -l < b2| awk '{print $1}'
where b2 is filename having detauls like:
cat b2
abc1
abc4
xyc3
sbdghf4
but when I do echo "$length" it displays nothing
Also I am using awk to overcome... (4 Replies)
Hi,
I need to figure out a way to to capture the contents of a field that is separated by a pipe sign.
Example Data:
-100F| some other description
-10C| some description
| some description
As you can see, the length of the field on the left of the pipe can be any length and... (3 Replies)
Hi,
ps -ef|awk '{print $2}'
i want to store the result of the above command in a variable.
I never worked with arrays in shell scripting.
i tried the below code:
set a=`ps -ef|awk '{print $2}'`
But echo $a returns null.
I want to store the content in a variable and retrieve it... (2 Replies)
My script below seems to be choking because I need the the output of the find command to be stored as a variable that can then be called by used lower in the script.
#!/bin/bash
cd "/resumes_to_be_completed"
var1=find . -mmin -1 -type f \( -name "*.doc" -o -name "*.docx" \)... (1 Reply)
I have a below syntax its working fine...
var12=$(ps -ef | grep apache | awk '{print $2,$4}')
Im getting expected output as below:
printf "%b\n" "${VAR12}"
dell 123
dell 456
dell 457
Now I wrote a while loop.. the output of VAR12 should be passed as input parameters to while loop and results... (5 Replies)
Discussion started by: sam@sam
5 Replies
LEARN ABOUT ULTRIX
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)