add softlink to a directory Centos linux

I wish to create a link to /usr/local/apache/htdocs by simply typing in "htdocs" at the prompt. I was reading other sites but I couldn't get it to work. Do I have to be root all the time to make this link work or can I be logged in as my own personal user?

In a related question, I wish to create link to:
/home/vkimura/Downloads/PhpStorm-303/bin/phpstorm.sh by simply typing in at any prompt "pstorm"

Thank you for your help,
Victor
Victor KimuraSEO, Web DeveloperAsked:
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1ly4meCommented:
Yes you can create soft link to a file and can run under any user.
Create soft link as root user,
#ln -s /home/vkimura/Downloads/PhpStorm-303/bin/phpstorm.sh /pstorm
Make sure the file phpstorm.sh has execute permission for all users. (Generally 755 permission for that file.)

That soft link pstorm, can be executed under any user, for ex for under test user run the file as
#./pstorm not as pstorm
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Victor KimuraSEO, Web DeveloperAuthor Commented:
Hi 1ly4me,

Am I doing something wrong? I changed the permission to 755 for phpstorm.sh

[root@seokingdomheaven vkimura]# ln -s /home/vkimura/Downloads/PhpStorm-303/bin/phpstorm.sh /pstorm
[root@seokingdomheaven vkimura]# pstorm
bash: pstorm: command not found
[root@seokingdomheaven vkimura]# ./pstorm
bash: ./pstorm: No such file or directory
[root@seokingdomheaven vkimura]#  ln -s /home/vkimura/Downloads/PhpStorm-303/bin/phpstorm.sh /pstorm
ln: creating symbolic link `/pstorm' to `/home/vkimura/Downloads/PhpStorm-303/bin/phpstorm.sh': File exists
[root@seokingdomheaven vkimura]# pstorm
bash: pstorm: command not found
[root@seokingdomheaven vkimura]# ./pstorm
bash: ./pstorm: No such file or directory
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1ly4meCommented:
Type 'pwd' at the command prompt, it will return working directory.
[root@seokingdomheaven vkimura]#pwd
/home/vkimura/  -  It should return something like that.
You have created the soft link on '/' directory, which means on the base directory.

[root@seokingdomheaven vkimura]#cd /    
[root@seokingdomheaven vkimura]#./pstrom

This should work
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Victor KimuraSEO, Web DeveloperAuthor Commented:
Hi 1ly4me,

Oh, I see. How can I make the shortcut to work for all directories?
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1ly4meCommented:
I couldn't get what are you trying to set up?
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ahoffmannCommented:
various solutions:
1. independent from shell (assuming that /home/vkimura/ is in your PATH environment variable)

   ln -s /home/vkimura/Downloads/PhpStorm-303/bin/phpstorm.sh /home/vkimura/pstorm

2. depends on shell:

   # sh and alike
   alias pstorm=/home/vkimura/Downloads/PhpStorm-303/bin/phpstorm.sh
 
   # csh and alike
   alias pstorm /home/vkimura/Downloads/PhpStorm-303/bin/phpstorm.sh

if you want these aliases permanent, you need to add these commands to the proper rc-file of the corresponding shell
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Duncan RoeSoftware DeveloperCommented:
If htdocs a directory or a command? I'll assume it's a directory and you want to be able to change directory to it by typing just htdocs.
Add this line to .bashrc in your home directory
alias htdocs="cd /usr/local/apache/htdocs"

Open in new window

To link to your pstorm.sh command (and indeed to htdocs if it was a command after all), you need to create a symbolic link in a directory that is in your PATH. You can see what that is by typing echo $PATH or env|grep PATH at the command prompt. Do you have a bin directory in your home directory? If you do, you should see it in PATH. If you don't, you should make one
cd; mkdir bin

Open in new window

Next time you log in, you should see /home/vkimura/bin in the list when you echo $PATH. Now all you have to do is make a symbolic link in the new bin directory
cd ~/bin
ln -s ~/Downloads/PhpStorm-303/bin/phpstorm.sh phpstorm

Open in new window

(Instead of the tilde ("~")you could type /home/vkimura, but the Bash shell will do that expansion for you).
You can do all the above when logged in as yourself - in fact the new commands will only work when you are so logged in. There is no need to change permissions on symbolic links - actually it's impossible to do that.
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Victor KimuraSEO, Web DeveloperAuthor Commented:
Thank you all. That's very helpful.
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