How do I change directories to a path given by input variable in Korn Shell?
e.g. I tired with the Korn Shell below but it doesn't work.
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#!/bin/ksh
echo "Enter folder name: \c"
read folder
cd $folder
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Any help will... (5 Replies)
Hi, being very new to Korn Shell Scripting I am hoping that someone here can help me. I want to compare file name in scp/inbox directory to file name stored inside a file in pnt/compare directory.
Hi, being very new to Korn Shell Scripting I am hoping that someone here can help me. I want to... (1 Reply)
How do I replace a space " " character at a particular position in a line?
e.g. I have a file below
$ cat i2
111 002 A a
33 0011 B c
2222 003 C a
I want all the 1st spaces to be replaced with forward slash "/" and the 3rd spaces to have 5 spaces to get the output below:
111/002... (8 Replies)
Hi
I'm new to scripting and I don't know where to start. I need to create a script that needs to look for specific files in a specific folder then I need to return the filename, the recordcount, bytecount and checksums. Then I need to write these results into a new file.
I would appreciate... (2 Replies)
Hi all,
I need a Korn Shell script that will go out to all Unix Servers and pull all non humans IDs from them while at the same time produce a file to show which servers we have access to and which ones we don't.
Thanks in advance. (5 Replies)
I have made the following simple script:
a=0
let a=$a+1
if "]
then mailx -s "Up" abc@yahoo.com
fi
When I run the above script, I get the following error:
# ./new.ksh
./new.ksh: ]: not found.
Please tell me how to use if here? (6 Replies)
I am attempting to learn shell programming using o'rielly book "Learning the Korn Shell".
I am finding it pretty difficult to do since the only access I have to unix boxes are running version 99 of ksh.
The book utilizes ksh93 and there appear to be many differences. I can't even follow along... (2 Replies)
I have a scenario to implement in Korn shell script. Here it is..
I need to compare two values to see whether they are same or not. The issue is that the values coming in for comparison can be a string or an integer which can be determined during run time only.
Which korn shell comparison... (2 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
There is a menu driven program and there are some fields to be achived
3. Display contents of all .lst files... (3 Replies)
I am attempting to write a korn shell script that does the following, but I am getting errors. I'm new to korn shell scripting and am not sure what I am doing wrong. Please help with example scripts. Thanks.
1) check for day of the week
2) if day of the week is Monday then check for the... (4 Replies)
Discussion started by: ijmoore
4 Replies
LEARN ABOUT PHP
system
SYSTEM(3) 1 SYSTEM(3)system - Execute an external program and display the outputSYNOPSIS
string system (string $command, [int &$return_var])
DESCRIPTION system(3) is just like the C version of the function in that it executes the given $command and outputs the result.
The system(3) call also tries to automatically flush the web server's output buffer after each line of output if PHP is running as a
server module.
If you need to execute a command and have all the data from the command passed directly back without any interference, use the passthru(3)
function.
PARAMETERS
o $command
- The command that will be executed.
o $return_var
- If the $return_var argument is present, then the return status of the executed command will be written to this variable.
RETURN VALUES
Returns the last line of the command output on success, and FALSE on failure.
EXAMPLES
Example #1
system(3) example
<?php
echo '<pre>';
// Outputs all the result of shellcommand "ls", and returns
// the last output line into $last_line. Stores the return value
// of the shell command in $retval.
$last_line = system('ls', $retval);
// Printing additional info
echo '
</pre>
<hr />Last line of the output: ' . $last_line . '
<hr />Return value: ' . $retval;
?>
NOTES
Warning
When allowing user-supplied data to be passed to this function, use escapeshellarg(3) or escapeshellcmd(3) to ensure that users can-
not trick the system into executing arbitrary commands.
Note
If a program is started with this function, in order for it to continue running in the background, the output of the program must be
redirected to a file or another output stream. Failing to do so will cause PHP to hang until the execution of the program ends.
Note
When safe mode is enabled, you can only execute files within the safe_mode_exec_dir. For practical reasons, it is currently not
allowed to have .. components in the path to the executable.
Warning
With safe mode enabled, the command string is escaped with escapeshellcmd(3). Thus, echo y | echo x becomes echo y | echo x.
SEE ALSO exec(3), passthru(3), popen(3), escapeshellcmd(3), pcntl_exec(3), backtick operator.
PHP Documentation Group SYSTEM(3)