Anytime I’ve been running a perl based script on my leopard box I got this really irritating output with whatever else I was expecting:

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LC_ALL = “En_US”,
LANG = (unset)
are supported and installed on your system.
perl: warning: Falling back to the standard locale (“C”).

With a quick Google search I found an answer. Basically the solution / fix is to make sure the following is set in either your ~/.profile or ~/.bashrc or ~/.cshrc

# This setting is for the new UTF-8 terminal support
export LC_CTYPE=en_US.UTF-8
export LC_ALL=en_US.UTF-8

Wget is a great command line for grabbing things from the web, but it doesn’t ship with macs. So if you want to install it here are a few steps:

1. download the source file: http://ftp.gnu.org/pub/gnu/wget/wget-1.11.tar.gz
2. compile and install it:

tar -zxvf wget-1.11.tar.gz
cd wget-1.11/
./configure
make
sudo make install

Now the binary file is located in /usr/local/bin/. If you use bash as your default shell then you can add:

PATH=$PATH:/usr/local/bin; export PATH

in your .bash_profile.

Or if you want, you can do a symbolic link to have it in /usr/bin/:

sudo ln -s /usr/local/bin/wget /usr/bin/wget

That’s all and … happy downloading.

How do I restart the Apache 2 Web Server under Apple OS X UNIX operating systems using bash command prompt?

Open a terminal and than type the following command to restart the apache 2 web server:
$ sudo /usr/sbin/apachectl restart
OR
$ sudo apachectl -k restart

How do delete multiple files in bulk (say all *.bak file stored in /netapp/ and its subdirectory) under Linux / UNIX operating systems?

You can use the find command as follows to find and delete file in bulk:

find /path/to/delete -type f -iname "fileType" -delete

OR

find /path/to/delete -type f -iname "fileType" -exec rm -f {} \;

To delete all *.bak files in bulk from /netapp/ and its subdirectory, enter:
# find /netapp/ -type f -iname "*.bak" -delete
OR
# find /netapp/ -type f -iname "*.bak" -exec rm -f {} \;

Shell Scripting Example

In this example, you’ve a file called delete.txt (with 5000 entries, each per line) and you need to delete all those files:

/netapp/one.txt
/netapp/dir2/one.txt
/netapp/dir1/dir500/one.txt
….
…
….
/netapp/fivek.txt

Create a shell script as follows to read a text file using while loop one line at a time:

#!/bin/bash
_input=”/path/to/delete.txt”
[ ! -f "$_input" ] && { echo “File ${_input} not found.”; exit 1; }
while IFS= read -r line
do
[ -f "$line" ] && rm -f “$line”
done < “${_line}”

Wget is a great command line  for grabbing things from the web, but it doesn’t ship with macs. So if you want to install it here are a few steps:

1. download the source file: http://ftp.gnu.org/pub/gnu/wget/wget-1.11.tar.gz

2. compile and install it:

tar -zxvf wget-1.11.tar.gz
cd wget-1.11/
./configure
make
sudo make install


Now the binary file is located in /usr/local/bin/. If you use bash as your default shell then you can add:

PATH=$PATH:/usr/local/bin; export PATH

in your .bash_profile.

Or if you want, you can do a symbolic link to have it in /usr/bin/:

sudo ln -s /usr/local/bin/wget /usr/bin/wget

That’s all and … happy downloading.