Hello, I have made a Linux Shell Script that downloads 6 files from the Internet and then deletes them. Now i want to use the function "/usr/bin/time" and "bc" to calculate how long the avergate run time for the shell script is. I therefore need to do it 100 times. My shell script code is below:
I just set up an ftp server with Red Hat 5.2. I am doing the work, I'm baby stepping, but it seems like every step I get stuck. Currently, I'm trying to set up a crontab job, but I'm getting the following message: /bin/sh: /usr/bin/vi: No such file or directory. I see that vi exists in /bin/vi,... (3 Replies)
thanks for your recent post. i have this command /usr/bin/time find /usr -name socket.h -print/usr/bin/time find /usr -name socket.h -print which i have ran on my personal linux machine. I dont know how to interpret this command...does it mean that find the names in the usr directory and print it... (1 Reply)
I wondered if someone could point out the differences between the time commmand and usr/bin/time and the accuracy one might have over another.
Also, is there a website or two a person could maybe link for me to describe the differences?
Thank you for your time. (2 Replies)
Hi all,
below is the problem details:
ora10g@CNORACLE1>which ld
/usr/ucb/ld
ora10g@CNORACLE1>cd /usr/ccs/bin
ora10g@CNORACLE1>ln -s /usr/ucb/ld ld
ln: cannot create ld: File exists
ora10g@CNORACLE1>
how to link it to /usr/ccs/bin? (6 Replies)
Q1. I understand that /usr/local/bin means I can install/uninstall stuff in here and have any chance of messing up my original system files or effecting any other users. I created this directory myself.
But what about the directory I didn't create, namely /Users/m/bin? How is that directory... (1 Reply)
Legends,
I am not able to set "expr" function in ksh script.
Below is the sample code i used, and output is as "Syntax error"
Please help me to come out of it.
OUTPUT (9 Replies)
I want to have a script both define functions and have the ability to run an external program calling one of them. This is the simplified construct:
#!/bin/bash
foo() {
echo "this is foo"
}
bar() {
echo "this is bar"
}
case "$1" in
one)
foo
;;
two)
export... (1 Reply)
I'm not sure if this is the default behavior for the ld command, but it does not seem to be looking in /usr/local/lib for shared libraries.
I was trying to compile the latest version of Kanatest from svn. The autorgen.sh script seems to exit without too much trouble:
$ ./autogen.sh
checking... (2 Replies)
Discussion started by: AntumDeluge
2 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)