UNIX for Advanced & Expert Users

Probably because your PATH variable does not include the path/to/mydd.

hmf.. i dont get it... what is that mean

---------- Post updated at 07:44 PM ---------- Previous update was at 07:38 PM ----------

where can i see btw path variable

When i typed by in command line
pth

output is :

/usr/bin/...

by the way, what will i put in my path variable??

As an example;

Code:

pwd
/usr/local/bin
export PATH=$PATH:/usr/local/bin
env | grep PATH
PATH=/usr/bin:/usr/sbin:/usr/local/bin

Regards

Dave

PATH is upper case. It works like this
1. you place a directory in it
2. you place a separator which is a colon

The order you place the directory, is the order the system searches for a command.

Code:

# show your PATH variable
echo $PATH
# show every environment variable you have.
set
# show everything set shows and some more
env

theres a problem in here...
in my commandline
when i typed

ubuntu@ubuntu$: pwd
it says
home/ubuntu

and in my .bashrc
i put these one

alias dd=/path/to/mydd.shl
and save it

and in my new script name mydd:

pico mydd

iput these code:

#!/bin/bash
cmd="$*"
cmd= cmd=$( echo "$cmd" | sed 's/dd /\/usr\/bin\/dd /'| sed 's/\-u/conv=ucase /' | sed 's/\-l/conv=lcase /' )
eval $cmd
and chmod +x mydd

and when i typed in command line:

ubuntu@ubuntu$: dd if=mydd of=mydd.new -u
ubntu@ubuntu$ : /path/to/mydd.shl is not file or directory

i would like the output for mydd will become upper case all
but theres a problem...