It’s necessary to resize pictures while writing an article for my blog.
imagemagick and used the following command to resize all the pictures in the directory.
mkdir resize cp *.jpg resize/ mogrify -resize "25%" -quality "80%" *.jpg
I don’t want to run these 3 commands every time I need to do it.
Create a new directory for the commands
Let’s create a specific directory for the commands.
$ sudo mkdir /usr/local/my_commands
Add the path to $PATH
Then, edit the profile to add the path.
$ nano /etc/profile
Use your preferred editor.
Add the following line to the end of the file.
If you want to add the commands only for a specific user, add the same content to
Add a new command
The next step is to create our own command. I want to resize pictures with one command, I create
$ sudo nano resize
Then, add your own commands there. I added the following.
mkdir -p resize cp *.jpg resize/ mogrify -resize "25%" -quality "80%" *.jpg
Add the execution right
No execution right is added to the file by default.
$ ls -l total 4 -rw-r--r-- 1 root root 76 Dec 27 09:16 resize
No one can execute the command at the moment. So let’s add it to the file.
$ sudo chmod +x resize $ ls -l total 4 -rwxr-xr-x 1 root root 76 Dec 27 09:16 resize
Reloading the profile
If you want to execute the command without logout/login, the profile needs to be reloaded.
$ source /etc/profile
After this, the command can be executed by any user.