Add System Path in linux

The linux system path has been added for nearly half a year since it was switched to linux, and there is still a long way to go from skilled use. The reason for slow growth is not that many problems have not been encountered, however, I encountered problems but failed to record them in time and review them in time. Of course, I was not able to give a thorough explanation. I often think that the problem is very simple and it is not worth recording. In fact, linux is not very complicated, and its depth lies in its flexibility. It has a lot of knowledge points like English; once you have mastered a lot of small knowledge points, it's easy to get familiar with it. As a newbie, www.2cto.com often suffers from the headache of hitting the path of a large segment to execute commands after installing a new program. For example, after I install redis, if I want to enter the client, I have to input/opt/redis/src/redis-cli every time, which is very troublesome. The solution to this problem is to add the path of the command to the system path. Enter/etc at www.2cto.com and edit the profile (remember to back up to avoid failure ). [Cpp] #/etc/profile: system-wide. profile file for the Bourne shell (sh (1) # and Bourne compatible shells (bash (1), ksh (1), ash (1 ),...). if ["$ PS1"]; then if ["$ BASH"] & ["$ BASH "! = "/Bin/sh"]; then # The file bash. bashrc already sets the default PS1. # PS1 = '\ h: \ w \ $' if [-f/etc/bash. bashrc]; then. /etc/bash. bashrc fi else if ["'id-U'"-eq 0]; then PS1 = '# 'else PS1 =' $ 'fi fi # The default umask is now handled by pam_umask. # See pam_umask (8) and/etc/login. defs. if [-d/etc/profile. d]; then for I in/etc/profile. d /*. sh; do if [-r $ I]; then. $ I fi done unset I fi <em> <strong> <span style = "color: #000000;"> REDIS_HOME = "/opt/redis-2.6.10/src" PATH = "$ PATH: $ REDIS_HOME "export PATH </span> </strong> </em> follow the bold slash to add it. After the machine is restarted, you can see that it has taken effect. Echo "$ PATH", you can see that REDIS_HOME has been added. However, the export PATH = "new path" method in the command line will expire after restart (the cause is unknown ).