Question is entitled as concrete solutions shots are as follows:
Analyze problems
1.whereis ifconfig look at the order in which directory
2.echo $ PATH look at whether the directory path, note the lunux is completely case-sensitive, so do not ignore this point
3. Run the need add the directory path specified in the pATH or
4 can then be accessed such
method: [root @ localhost sbin] $ / sbin / ifconfig can occur using
method two: [root @ localhost sbin] $ export pATH = $ pATH: / sbin, this setting, next time you can directly visit, the first trouble-free place, such as:
[root @ localhost /] $ ifconfig
method three: modify / etc / profile file, comment out the if statement to
the following the if statement commented:
# the Path Manipulation
if [ "$ the EUID" = "0"]; the then
pathmunge / sbin
pathmunge / usr / sbin
pathmunge / usr / local / sbin
Fi
modify
# Manipulation the Path
# if [ "$ the EUID" = "0"]; the then
pathmunge / sbin
pathmunge / usr / sbin
pathmunge / usr / local / sbin
#be
Second operating method of Example:
In the terminal or plain text interface, open the file .bash_profile in the user's home directory
#cd ~ into the user directory, or can not find the file .bash_profile
#ls -a
#vi .bash_profile
behind the line PATH plus / sbin, with separated by colons, such as
PATH = $ PATH: $ HOME / bin: / sbin
exit save,
source .bash_profile
Or re-logout, login, you can enter into force.
Reproduced in: https: //www.cnblogs.com/qypt2015/p/7270144.html