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Why Bash unable to find command even if $PATH is specified properly?

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http://unix.stackexchange.com – I am specifying path to my command in the file /etc/profile: export PATH=$PATH:/usr/app/cpn/bin My command is located in: $ which ydisplay /usr/app/cpn/bin/ydisplay So, when I performing "echo $PATH" output is looks like: $ echo $PATH ...:/usr/app/cpn/bin And everything is OK, but when I am trying to launch my command via SSH I am getting error: $ ssh 127.0.0.1 ydisplay $ bash: ydisplay: command not found But the my path is still present: $ ssh 127.0.0.1 echo $PATH ...:/usr/app/cpn/bin Please explain me why Bash unable to find ydisplay during SSH session and how to properly co (HowTos)