Bash: ifconfig: commandnotfound

Source: Internet
Author: User
Bash: ifconfig: commandnotfound -- Linux general technology-Linux technology and application information. For more information, see. I have seen some online saying that it is about changing the profile file... I am using red hat Enterprise Edition 5. Which of the following heroes can tell me what the changes mean ??

Method 3: Modify the/etc/profile file and comment out the if statement.
Comment out the following if statement:
# Path manipulation
If ["$ EUID" = "0"]; then
Pathmunge/sbin
Pathmunge/usr/sbin
Pathmunge/usr/local/sbin
Fi
Change
# Path manipulation
# If ["$ EUID" = "0"]; then
Pathmunge/sbin
Pathmunge/usr/sbin
Pathmunge/usr/local/sbin
# Fi

What should I do if I want to add some directories to the PATH?
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