11-09-2014
Availability: echo vs. printf?
Hello,
For some reason i dont remember, i currently believe (but beeing unsure) that printf is available on more diffrent systems (unix, bsd, linux, ??) than echo is.
Could someone please enlighten me, whether this is true or not?
Thank you
PS:
I just found pages about the diffrences of the two commands, but not where they are available or not.
10 More Discussions You Might Find Interesting
1. Solaris
Hi, Im new in shell programming.
I need to know the availability for specific printers. We send requests from solaris to printers located at an NT server. My idea is creating a shell that will monitor availbaility and send an email when something is wrong.
I have a file with printers and its... (2 Replies)
Discussion started by: agsarm1971
2 Replies
2. UNIX for Dummies Questions & Answers
Bit of a weird one i suppose, i want to use an echo inside an echo... For example...
i have a script that i want to use to take users input and create another script. Inside this script it creates it also needs to use echos...
echo "echo "hello"" >$file
echo "echo "goodbye"" >$file
... (3 Replies)
Discussion started by: mokachoka
3 Replies
3. Shell Programming and Scripting
I want to print a colored line using bash. I want to print:
Smtp status
where "Smtp status" will be in yellow and will be in green.
Thanks. (2 Replies)
Discussion started by: proactiveaditya
2 Replies
4. Shell Programming and Scripting
#!/usr/bin/ksh
var1="Hi World"
var2="Morning"
var3=$(echo "$var1" \n "$var2")
echo $var3
var3=$(printf "$var1 \n $var2")
echo $var3
Output
Any way to get
in my $var3 ? (7 Replies)
Discussion started by: dahlia84
7 Replies
5. Shell Programming and Scripting
This may be little confusing. I have Script1, which pulls data from the system and creates another script(lets say script2). While I run script1 I need to add printf/echo statements for script2, so that when I run script2 I see those statement.
eg: script1 765
printf " display frame-$1 timeoffset... (2 Replies)
Discussion started by: miltonrods
2 Replies
6. UNIX for Dummies Questions & Answers
Hi,
I want to set up a iscsi high availability with sheepdog distributed storage.
Here is my system set up. Four nodes with sheepdog distributed storage and i am sharing this storage through iscsi using two nodes as well as using a virtual ip set up using ucarp.Two nodes using same iqn. And... (0 Replies)
Discussion started by: jobycxa
0 Replies
7. AIX
Hi,
Can someone help and give the answer for the following questions:
1. When PowerHA SystemMirror 7.1 is installed on AIX 7.1, what RSCT component does Cluster Aware AIX (CAA) replace?
A. Group Services
B. Resource Manager
C. Topology Services
D. Resource Monitoring and Control... (2 Replies)
Discussion started by: walterchang100
2 Replies
8. Shell Programming and Scripting
Hello script guru's
as i write more and more code i always block at managing output... either writing to standard out, writing to files via std out (log, temp file, etc). Don't get me wrong 99% of the time it DOES the job but maybe there is more efficient.
I'm writing a small script to... (2 Replies)
Discussion started by: maverick72
2 Replies
9. Shell Programming and Scripting
Hello
I want to check whether certain arguments were passed to the script, and when those are, not doing a log entry.
If those arguments are not passed, always do a log entry (*new call*).
What currently i have is this:
echo "${@}"|grep -q \\- || \
tui-log -e "$LOG" "\r---- New call $$... (4 Replies)
Discussion started by: sea
4 Replies
10. Solaris
hi guys
I posted problem last time I didn't find answer to my issue.
my problem is as below:
I have two servers which work as an actif/standby in high availability system.
but when i use command HASTAT -a i have the following message: couldn' find actif node.
the servers are sun... (1 Reply)
Discussion started by: zineb06
1 Replies
IP2LONG(3) 1 IP2LONG(3)
ip2long - Converts a string containing an (IPv4) Internet Protocol dotted address into a proper address
SYNOPSIS
int ip2long (string $ip_address)
DESCRIPTION
The function ip2long(3) generates an IPv4 Internet network address from its Internet standard format (dotted string) representation.
ip2long(3) will also work with non-complete IP addresses. Read http://publibn.boul-
der.ibm.com/doc_link/en_US/a_doc_lib/libs/commtrf2/inet_addr.htm for more info.
PARAMETERS
o $ip_address
- A standard format address.
RETURN VALUES
Returns the IPv4 address or FALSE if $ip_address is invalid.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
|5.2.10 | |
| | |
| | Prior to this version, ip2long(3) would some- |
| | times return a valid number even if passed an |
| | value which was not an (IPv4) Internet Protocol |
| | dotted address. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
ip2long(3) Example
<?php
$ip = gethostbyname('www.example.com');
$out = "The following URLs are equivalent:<br />
";
$out .= 'http://www.example.com/, http://' . $ip . '/, and http://' . sprintf("%u", ip2long($ip)) . "/<br />
";
echo $out;
?>
Example #2
Displaying an IP address
This second example shows how to print a converted address with the printf(3) function in both PHP 4 and PHP 5:
<?php
$ip = gethostbyname('www.example.com');
$long = ip2long($ip);
if ($long == -1 || $long === FALSE) {
echo 'Invalid IP, please try again';
} else {
echo $ip . "
"; // 192.0.34.166
echo $long . "
"; // -1073732954
printf("%u
", ip2long($ip)); // 3221234342
}
?>
NOTES
Note
Because PHP's integer type is signed, and many IP addresses will result in negative integers on 32-bit architectures, you need to
use the "%u" formatter of sprintf(3) or printf(3) to get the string representation of the unsigned IP address.
Note
ip2long(3) will return FALSE for the IP 255.255.255.255 in PHP 5 <= 5.0.2. It was fixed in PHP 5.0.3 where it returns -1 (same as
PHP 4).
SEE ALSO
long2ip(3), sprintf(3).
PHP Documentation Group IP2LONG(3)