{"id":3721,"date":"2021-11-17T18:42:09","date_gmt":"2021-11-17T12:12:09","guid":{"rendered":"https:\/\/iatmm.com\/?p=3721"},"modified":"2021-12-17T08:58:08","modified_gmt":"2021-12-17T02:28:08","slug":"2-1-command-line-basics-variables-1","status":"publish","type":"post","link":"https:\/\/iat.edu.mm\/2-1-command-line-basics-variables-1\/","title":{"rendered":"2.1 Command Line Basics: Variables (1)"},"content":{"rendered":"\n

Introduction<\/span><\/strong><\/p>\n\n\n\n

            Shells \u1010\u103d\u1031\u1021\u102c\u1038\u101c\u102f\u1036\u1038\u101f\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1030 User \u1010\u1005\u103a\u101a\u1031\u102c\u1000\u103a\u1005\u102e\u101b\u1032\u1037 Shell Sessions <\/span><\/em>\u1010\u103d\u1031\u1019\u103e\u102c Status Information \u1010\u103d\u1031\u1000\u102d\u102f Manage \u101c\u102f\u1015\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1021\u1032\u1037\u1012\u102e\u101c\u102d\u102f \u1021\u1019\u103e\u1014\u103a\u1010\u1000\u101a\u103a\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u1031\u1010\u1032\u1037\u1021\u1001\u103b\u102d\u1014\u103a \u101b\u103e\u102d\u1014\u1031\u1019\u101a\u1037\u103a Runtime Information \u1010\u103d\u1031\u101f\u102c Session \u1010\u103d\u1031\u1021\u1010\u103d\u1004\u103a\u1038\u1019\u103e\u102c\u1015\u1032 \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u1014\u102d\u102f\u1004\u103a\u1015\u103c\u102e\u1038 Shell \u101b\u1032\u1037 \u1010\u102f\u1014\u1037\u103a\u1015\u103c\u1014\u103a\u1019\u103e\u102f\u1010\u103d\u1031\u1000\u102d\u102f\u101c\u100a\u103a\u1038 \u101e\u1000\u103a\u101b\u1031\u102c\u1000\u103a\u1019\u103e\u102f\u101b\u103e\u102d\u1019\u103e\u102c\u1015\u102b\u104b \u1021\u1032\u1037\u1012\u102e\u101c\u102d\u102f \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u101e\u103d\u102c\u1038\u1010\u1032\u1037 \u1021\u1001\u103b\u1000\u103a\u1021\u101c\u1000\u103a Data \u1010\u103d\u1031\u1000\u102d\u102f System Configuration \u1010\u103d\u1031\u1021\u1010\u103d\u1000\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u102c\u101c\u100a\u103a\u1038\u101b\u103e\u102d\u1019\u103e\u102c\u1015\u102b\u104b \u1021\u1032\u1037\u1012\u102e Data \u1010\u103d\u1031\u101f\u102c \u1012\u102e\u101e\u1004\u103a\u1001\u1014\u103a\u1038\u1005\u102c\u1019\u103e\u102c\u1016\u1031\u102c\u103a\u1015\u103c\u101e\u103d\u102c\u1038\u1019\u101a\u1037\u103a Variables \u1010\u103d\u1031\u1011\u1032\u1019\u103e\u102c \u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u1010\u102c\u1015\u102b\u104b<\/p>\n\n\n\n

Variables<\/span><\/strong><\/p>\n\n\n\n

            Variables \u1010\u103d\u1031\u1006\u102d\u102f\u1010\u102c \u1005\u102c\u101e\u102c\u1038 Text \u1010\u103d\u1031 (\u101e\u102d\u102f\u1037) \u1000\u102d\u1014\u103a\u1038\u1002\u100f\u1014\u103a\u1038 Numbers \u1010\u103d\u1031\u101c\u102d\u102f \u1021\u1001\u103b\u1000\u103a\u1021\u101c\u1000\u103a\u1010\u103d\u1031 \u101e\u102d\u1019\u103a\u1038\u1006\u100a\u103a\u1038\u1016\u102d\u102f\u1037\u101b\u102c \u1014\u1031\u101b\u102c\u101c\u1031\u1038\u1010\u103d\u1031\u1015\u102b\u104b \u101e\u102d\u1019\u103a\u1038\u1015\u103c\u102e\u1038\u1010\u1032\u1037\u1021\u1001\u102b \u1021\u1032\u1037\u1012\u102e\u101e\u102d\u1019\u103a\u1038\u101c\u102d\u102f\u1000\u103a\u1010\u1032\u1037\u1010\u1014\u103a\u1016\u102d\u102f\u1038\u1000\u102d\u102f \u1014\u1031\u102c\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102c \u1015\u103c\u1014\u103a\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f Access \u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102c\u1015\u102b\u104b Variables \u1010\u103d\u1031\u1011\u1032\u1000 \u1010\u1014\u103a\u1016\u102d\u102f\u1038 Content \u1010\u103d\u1031 \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u101c\u1032\u101e\u103d\u102c\u1038\u101b\u1004\u103a\u1010\u1031\u102c\u1004\u103a\u1019\u103e \u1021\u1032\u1037\u1012\u102e\u1037 Variable \u1000\u102d\u102f \u100a\u103d\u103e\u1014\u103a\u1038\u1006\u102d\u102f\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f Access \u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u101a\u1037\u103a \u1014\u102c\u1019\u100a\u103a Variable Name \u101b\u103e\u102d\u1015\u102b\u1010\u101a\u103a\u104b Variable \u1010\u103d\u1031\u101f\u102c Programming Languages \u1010\u1031\u102c\u103a\u1010\u1031\u102c\u103a\u1019\u103b\u102c\u1038\u1019\u103b\u102c\u1038\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1019\u103b\u102c\u1038\u1010\u1032\u1037 Tool \u1010\u1005\u103a\u1001\u102f\u1015\u102b\u1015\u1032\u104b<\/p>\n\n\n\n

            Linux Shells \u1021\u1019\u103b\u102c\u1038\u1005\u102f\u1019\u103e\u102c Variables Types<\/em> <\/span>( \u1042 ) \u1019\u103b\u102d\u102f\u1038\u101b\u103e\u102d\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n\n\n\n

Local Variables<\/span><\/strong><\/p>\n\n\n\n

         Local Variables \u1010\u103d\u1031\u1000\u102d\u102f \u101c\u1000\u103a\u101b\u103e\u102d\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u1031\u1010\u1032\u1037 Shell Process \u1021\u1010\u103d\u1004\u103a\u1038\u1019\u103e\u102c\u1015\u1032 \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101c\u102d\u102f\u1037\u101b\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1010\u1000\u101a\u103a\u101c\u102d\u102f\u1037 Local Variable \u1010\u1005\u103a\u1001\u102f\u1016\u1014\u103a\u1010\u102e\u1038\u1015\u103c\u102e\u1038\u1014\u1031\u102c\u1000\u103a\u1019\u103e\u102c \u1021\u1032\u1037\u1012\u102e Shell \u1019\u103e \u1021\u1001\u103c\u102c\u1038 Program \u1010\u1005\u103a\u1001\u102f\u1011\u1015\u103a\u1001\u1031\u102b\u103a\u101c\u102d\u102f\u1000\u103a\u1010\u101a\u103a\u1006\u102d\u102f\u1015\u102b\u1000 Program \u101f\u102c \u1001\u102f\u1014\u1016\u1014\u103a\u1010\u102e\u1038\u1001\u1032\u1037\u1010\u1032\u1037 Variable \u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101c\u102d\u102f\u1037\u101b\u1019\u103e\u102c \u1019\u101f\u102f\u1010\u103a\u1010\u1031\u102c\u1037\u1015\u102b\u1018\u1030\u1038\u104b \u1011\u1015\u103a\u1001\u1031\u102b\u103a\u1019\u101a\u1037\u103a Sub Processes \u1010\u103d\u1031\u1019\u103e \u101c\u1000\u103a\u1006\u1004\u1037\u103a\u1000\u1019\u103a\u1038\u1021\u101e\u102f\u1036\u1038\u1019\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u1010\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u1021\u1032\u1037\u1012\u102e\u101c\u102d\u102f Variables \u1010\u103d\u1031\u1000\u102d\u102f Local Variables \u1010\u103d\u1031\u101c\u102d\u102f\u1037 \u1001\u1031\u102b\u103a\u1010\u102c\u1015\u102b\u104b<\/p>\n\n\n\n

Environment Variables<\/span><\/strong><\/p>\n\n\n\n

          \u1012\u102e Variable Type \u1000\u1010\u1031\u102c\u1037 \u101e\u1000\u103a\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u1031\u1010\u1032\u1037 Shell Session \u1010\u1001\u102f\u1021\u1010\u103d\u1004\u103a\u1038\u1019\u103e\u102c\u101b\u1031\u102c \u1021\u1032\u1037\u1012\u102e\u1000\u1014\u1031 \u1011\u1015\u103a\u1001\u1031\u102b\u103a\u101c\u102d\u102f\u1000\u103a\u1010\u1032\u1037 Processes \u1010\u103d\u1031\u1011\u1032\u1019\u103e\u102c\u101b\u1031\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u1010\u102c\u1015\u102b\u104b \u1021\u1032\u1037\u1012\u102e\u101c\u102d\u102f Variables \u1010\u103d\u1031\u1000\u102d\u102f Run \u1014\u1031\u1010\u1032\u1037 Command \u1010\u103d\u1031\u1006\u102e\u1000\u102d\u102f Configuration Data \u1010\u103d\u1031 \u1015\u1031\u1038\u1015\u102d\u102f\u1037\u1016\u102d\u102f\u1037\u1021\u1010\u103d\u1000\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b\u1021\u1001\u102f\u101c\u102d\u102f \u1021\u1001\u103c\u102c\u1038 Programs \u1010\u103d\u1031\u1000\u1015\u102b \u1001\u1031\u102b\u103a\u101a\u1030\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f Access \u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1010\u102c\u1000\u103c\u1031\u102c\u1004\u1037\u103a\u1015\u1032 Environment Variables \u1010\u103d\u1031\u101c\u102d\u102f\u1037 \u1001\u1031\u102b\u103a\u1010\u102c\u1015\u102b\u104b Environment Variables \u1021\u1019\u103b\u102c\u1038\u1005\u102f\u1000\u102d\u102f \u1021\u1000\u103c\u102e\u1038\u1005\u102c\u101c\u102f\u1036\u1038\u1015\u102f\u1036\u1005\u1036\u1010\u103d\u1031\u1014\u103e\u1004\u1037\u103a \u1010\u103d\u1031\u1037\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b (\u1025\u1015\u1019\u102c – PATH, DATE, USER<\/span><\/em>) Default Environment Variables \u1010\u103d\u1031\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1030 User \u101b\u1032\u1037 Home Directory (or) Terminal Type \u1006\u102d\u102f\u1004\u103a\u101b\u102c Information \u1010\u103d\u1031 \u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u1015\u102b\u1010\u101a\u103a\u104b Environment Variables \u1010\u103d\u1031 \u1021\u102c\u1038\u101c\u102f\u1036\u1038\u101b\u1032\u1037 Complete Set \u1000\u102d\u102f Environment \u101c\u102d\u102f\u1037 \u1015\u103c\u1031\u102c\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n\n\n\n

            Variables Types \u1010\u103d\u1031\u1000\u102d\u102f Variable Scope<\/span><\/em> \u101c\u102d\u102f\u1037\u101c\u100a\u103a\u1038 \u1001\u1031\u102b\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n\n\n\n

Note: Variables \u1010\u103d\u1031\u1006\u102d\u102f\u1010\u102c \u1021\u1019\u103c\u1032\u1010\u100a\u103a\u101b\u103e\u102d\u1014\u1031\u1000\u103c\u1010\u102c \u1019\u101f\u102f\u1010\u103a\u1015\u102b\u1018\u1030\u1038\u104b \u101e\u1030\u1010\u102d\u102f\u1037\u1000\u102d\u102f \u1005\u1010\u1004\u103a\u1016\u1014\u103a\u1010\u102e\u1038 Set \u101c\u102f\u1015\u103a\u101c\u102d\u102f\u1000\u103a\u1010\u1032\u1037 Shell \u1000\u102d\u102f \u1015\u102d\u1010\u103a\u101c\u102d\u102f\u1000\u103a\u1010\u1032\u1037\u1021\u1001\u102b Variables \u1010\u103d\u1031\u101b\u1031\u102c \u101e\u102d\u1019\u103a\u1038\u1011\u102c\u1038\u1010\u1032\u1037 Contents \u1010\u103d\u1031\u101b\u1031\u102c \u1021\u102c\u1038\u101c\u102f\u1036\u1038\u1015\u103b\u1031\u102c\u1000\u103a\u101e\u103d\u102c\u1038\u1019\u103e\u102c\u1015\u102b\u104b Shells \u1021\u1019\u103b\u102c\u1038\u1005\u102f\u1019\u103e\u102c Shell \u1021\u101e\u1005\u103a\u1010\u1005\u103a\u1001\u102f \u1005\u1016\u103d\u1004\u1037\u103a\u101c\u102d\u102f\u1000\u103a\u1010\u102d\u102f\u1004\u103a\u1038 \u1000\u103c\u102d\u102f\u1010\u1004\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u1015\u103c\u102e\u1038\u1010\u1032\u1037 Variables \u1010\u103d\u1031\u1015\u102b\u101d\u1004\u103a\u1010\u1032\u1037 Configuration Files<\/span> \u1010\u103d\u1031 \u1015\u1031\u1038\u1015\u102b\u1010\u101a\u103a\u104b \u1019\u1015\u103b\u1031\u102c\u1000\u103a\u1015\u103b\u1000\u103a\u1018\u1032 \u1021\u1019\u103c\u1032\u1000\u103b\u1014\u103a\u1014\u1031\u101b\u1019\u101a\u1037\u103a Variables \u1010\u103d\u1031\u1000\u102d\u102f \u1021\u1032\u1037\u1012\u102e\u101c\u102d\u102f Configuration Files \u1010\u103d\u1031\u1019\u103e\u102c \u1011\u100a\u1037\u103a\u1011\u102c\u1038\u101b\u1015\u102b\u1019\u101a\u103a\u104b<\/code><\/em><\/p>\n\n\n\n

Manipulating Variables<\/span><\/strong><\/p>\n\n\n\n

            System Administrator \u1010\u1005\u103a\u101a\u1031\u102c\u1000\u103a\u1021\u1010\u103d\u1000\u103a\u1010\u1031\u102c\u1037 Local <\/span><\/em>\u1014\u103e\u1004\u1037\u103a Environment Variables<\/span><\/em> \u1010\u103d\u1031\u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u101b\u1010\u102c\u104a \u1015\u103c\u102f\u1015\u103c\u1004\u103a\u101b\u1010\u102c\u104a \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u101b\u1010\u102c\u1010\u103d\u1031 \u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1016\u102d\u102f\u1037 \u101c\u102d\u102f\u1019\u103e\u102c\u1015\u102b\u104b<\/p>\n\n\n\n

Working with Local Variables<\/span><\/strong><\/p>\n\n\n\n

            = (Equal) Operator <\/span><\/em>\u101e\u102f\u1036\u1038\u1015\u103c\u102e\u1038 Local Variable \u1000\u102d\u102f \u1016\u1014\u103a\u1010\u102e\u1038\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b Simple Assignment \u101c\u1031\u1038\u1015\u103c\u102f\u101c\u102f\u1015\u103a\u1015\u103c\u102e\u1038 \u1021\u1001\u102f\u101c\u102d\u102f \u1010\u100a\u103a\u1006\u1031\u102c\u1000\u103a\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Note: = Operator <\/span>\u101c\u1031\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u1015\u103a\u101c\u103b\u1000\u103a \u1021\u101b\u103e\u1031\u1037 \u1021\u1014\u1031\u102c\u1000\u103a\u1010\u103d\u1031\u1019\u103e\u102c \u2018 \u2019 Space Character <\/span>\u1019\u1011\u100a\u1037\u103a\u101b\u1015\u102b\u1018\u1030\u1038\u104b<\/code><\/em><\/p>\n\n\n\n

            \u201cecho\u201d Command<\/span><\/em> \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u103c\u102e\u1038 \u1019\u100a\u103a\u101e\u100a\u1037\u103a Variable \u1000\u102d\u102f\u1019\u1006\u102d\u102f Output \u1011\u102f\u1010\u103a\u1015\u103c\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b Argument \u1019\u103e\u102c \u1011\u100a\u1037\u103a\u1015\u1031\u1038\u101c\u102d\u102f\u1000\u103a\u1010\u1032\u1037\u1005\u102c\u101e\u102c\u1038\u1000\u102d\u102f \u1015\u103c\u1014\u103a\u1015\u103c\u1015\u1031\u1038\u1019\u103e\u102c\u1015\u102b\u104b<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

            Variable \u101b\u1032\u1037 \u1010\u1014\u103a\u1016\u102d\u102f\u1038 Value \u1000\u102d\u102f \u101b\u101a\u1030 Access \u101c\u102f\u1015\u103a\u1016\u102d\u102f\u1037\u101b\u102c $ (Dollar Sign)<\/span><\/em> \u1000\u102d\u102f Variable Name \u101b\u103e\u1031\u1037\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1016\u102d\u102f\u1037\u101c\u102d\u102f\u1015\u102b\u1019\u101a\u103a\u104b<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

            Shell \u1010\u1005\u103a\u1001\u102f\u1019\u103e\u102c \u1016\u1014\u103a\u1010\u102e\u1038\u1001\u1032\u1037\u1010\u1032\u1037 Variable \u1000\u102d\u102f \u1021\u101e\u1005\u103a\u1011\u1015\u103a\u1016\u103d\u1004\u1037\u103a\u101c\u102d\u102f\u1000\u103a\u1010\u1032\u1037 \u1021\u1001\u103c\u102c\u1038 Shell Window \u1010\u1005\u103a\u1001\u102f\u1019\u103e\u102c \u1015\u103c\u1014\u103a\u1001\u1031\u102b\u103a\u1000\u103c\u100a\u1037\u103a\u1010\u1032\u1037\u1021\u1001\u102b \u1019\u101e\u102d\u1010\u1031\u102c\u1037\u1010\u102c\u1019\u102d\u102f\u1037 \u1018\u102c\u1019\u103e\u1019\u1015\u103c\u1015\u1031\u1038\u1010\u1031\u102c\u1037\u1010\u102c\u1000\u102d\u102f \u1021\u1001\u102f\u101c\u102d\u102f\u1010\u103d\u1031\u1037\u101b\u1019\u103e\u102c\u1015\u102b\u104b \u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c\u1000 Variables \u1010\u103d\u1031\u101f\u102c \u101e\u1000\u103a\u1006\u102d\u102f\u1004\u103a\u101b\u102c Shell \u1010\u1005\u103a\u1001\u102f\u1021\u1010\u103d\u1004\u103a\u1038\u1019\u103e\u102c\u1015\u1032 \u1021\u1019\u103c\u1032\u1021\u101c\u102f\u1015\u103a\u101c\u102f\u1015\u103a\u1010\u102c\u1019\u102d\u102f\u1037\u1015\u102b\u104b  <\/p>\n\n\n\n

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           Variable \u1010\u1005\u103a\u1001\u102f\u101f\u102c Local Variable \u101f\u102f\u1010\u103a\u1019\u101f\u102f\u1010\u103a \u1005\u1005\u103a\u1000\u103c\u100a\u1037\u103a\u1016\u102d\u102f\u1037\u101b\u102c Process \u1021\u101e\u1005\u103a\u1010\u1005\u103a\u1001\u102f\u1011\u1015\u103a\u1001\u1031\u102b\u103a\u1000\u103c\u100a\u1037\u103a\u1015\u103c\u102e\u1038 \u1021\u1032\u1037\u1012\u102e Variable \u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102f \u101b\u103e\u102d\u1019\u101b\u103e\u102d \u1005\u1005\u103a\u1000\u103c\u100a\u1037\u103a\u101b\u1019\u103e\u102c\u1015\u102b\u104b \u1021\u1032\u1037\u1012\u102e\u1021\u1010\u103d\u1000\u103a Shell \u1021\u101e\u1005\u103a\u1010\u1005\u103a\u1001\u102f\u1001\u1031\u102b\u103a\u1000\u103c\u100a\u1037\u103a\u1015\u103c\u102e\u1038 echo Command \u1000\u102d\u102f \u1015\u103c\u1014\u103a Run \u1000\u103c\u100a\u1037\u103a\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b Shell \u1021\u101e\u1005\u103a\u101f\u102c Process \u1021\u101e\u1005\u103a\u1010\u1005\u103a\u1001\u102f\u1021\u1016\u103c\u1005\u103a Run \u1010\u102c\u1019\u102d\u102f\u1037 \u101e\u1030\u1037\u1000\u102d\u102f \u1005\u1010\u1004\u103a\u1001\u1031\u102b\u103a\u1001\u1032\u1037\u1010\u1032\u1037 Parent Process<\/span><\/em> \u1019\u103e Local Variables \u1010\u103d\u1031\u1000\u102d\u102f \u1006\u1000\u103a\u101a\u1030\u1019\u103e\u102c Inherit <\/span><\/em>\u101c\u102f\u1015\u103a\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102c \u1019\u101f\u102f\u1010\u103a\u1010\u102c\u1000\u102d\u102f \u1021\u1001\u102f\u101c\u102d\u102f \u1010\u103d\u1031\u1037\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n\n\n\n

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Note: \u1021\u1001\u102f \u1025\u1015\u1019\u102c\u1019\u103e\u102c \u2018 \u2019 Single Quotes<\/span> \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101b\u1015\u102b\u1019\u101a\u103a\u104b<\/code><\/em><\/p>\n\n\n\n

            Variable \u1000\u102d\u102f \u1015\u103c\u1014\u103a\u101c\u100a\u103a\u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1016\u102d\u102f\u1037\u1010\u1031\u102c\u1037 unset Command <\/span><\/em>\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n\n\n\n

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Note: unset Command<\/span> \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1016\u102d\u102f\u1037\u1006\u102d\u102f Variable Name \u1000\u102d\u102f Argument \u1021\u1016\u103c\u1005\u103a\u1015\u1031\u1038\u1016\u102d\u102f\u1037 \u101c\u102d\u102f\u1015\u102b\u1010\u101a\u103a\u104b $ Sign \u101f\u102c Variable \u101b\u1032\u1037 Value \u1000\u102d\u102f \u101b\u100a\u103a\u100a\u103d\u103e\u1014\u103a\u1038\u1010\u102c\u1019\u102d\u102f\u1037 Variable Name \u101b\u1032\u1037 \u101b\u103e\u1031\u1037\u1019\u103e\u102c $ Sign <\/span>\u1019\u1011\u100a\u1037\u103a\u101b\u1015\u102b\u1018\u1030\u1038\u104b<\/em><\/code><\/p>\n","protected":false},"excerpt":{"rendered":"

Introduction             Shells \u1010\u103d\u1031\u1021\u102c\u1038\u101c\u102f\u1036\u1038\u101f\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1030 User \u1010\u1005\u103a\u101a\u1031\u102c\u1000\u103a\u1005\u102e\u101b\u1032\u1037 Shell Sessions \u1010\u103d\u1031\u1019\u103e\u102c Status Information \u1010\u103d\u1031\u1000\u102d\u102f Manage \u101c\u102f\u1015\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1021\u1032\u1037\u1012\u102e\u101c\u102d\u102f \u1021\u1019\u103e\u1014\u103a\u1010\u1000\u101a\u103a\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u1031\u1010\u1032\u1037\u1021\u1001\u103b\u102d\u1014\u103a \u101b\u103e\u102d\u1014\u1031\u1019\u101a\u1037\u103a Runtime Information […]<\/p>\n","protected":false},"author":1,"featured_media":4031,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64,18,65],"tags":[],"class_list":["post-3721","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iat-courses","category-knowledge-sharing","category-linux"],"_links":{"self":[{"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/posts\/3721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/comments?post=3721"}],"version-history":[{"count":7,"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/posts\/3721\/revisions"}],"predecessor-version":[{"id":3736,"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/posts\/3721\/revisions\/3736"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/media\/4031"}],"wp:attachment":[{"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/media?parent=3721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/categories?post=3721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/iat.edu.mm\/api\/wp\/v2\/tags?post=3721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}