9.1 (1786B)
1 .TH 9 1 2 .SH NAME 3 9, 9.rc, u, u.rc \- run Plan 9 or Unix commands 4 .SH SYNOPSIS 5 .B 9 6 .I cmd 7 [ 8 .I args 9 \&... 10 ] 11 .PP 12 .B . 13 .B 9 14 (from 15 .MR sh (1) ) 16 .PP 17 .B 9.rc 18 .I cmd 19 [ 20 .I args 21 \&... 22 ] 23 .PP 24 .B . 25 .B 9.rc 26 (from 27 .MR rc (1) ) 28 .PP 29 .B u 30 .I cmd 31 [ 32 .I args 33 \&... 34 ] 35 .PP 36 .B . 37 .B u 38 (from 39 .MR sh (1) ) 40 .PP 41 .B u.rc 42 .I cmd 43 [ 44 .I args 45 \&... 46 ] 47 .PP 48 .B . 49 .B u.rc 50 (from 51 .MR rc (1) ) 52 .SH DESCRIPTION 53 Because Plan 9 supplies commands with the same name as but different 54 behavior than many basic Unix system commands 55 (e.g., 56 .BR grep , 57 .BR sed , 58 .BR mkdir , 59 .BR rm ), 60 it is not recommended to run with the Plan 9 bin directory 61 ahead of the system directories. 62 .PP 63 .I 9 64 is a shell script that sets up a Plan 9 environment and runs 65 .I cmd . 66 It sets 67 .B $PLAN9 68 if necessary 69 and adds 70 .B $PLAN9/bin 71 to the beginning of 72 .B $PATH 73 before running 74 .IR cmd . 75 .PP 76 If run with no arguments, 77 .B 9 78 does not do anything, so it can be invoked from 79 .IR sh -style 80 shells using 81 .B . 82 .B 9 83 in order to make the current shell start running in the Plan 9 environment. 84 .PP 85 .I 9.rc 86 is the same as 87 .I 9 88 but written for use by the shell 89 .MR rc (1) . 90 .PP 91 .I U 92 and 93 .I u.rc 94 are the inverse of 95 .I 9 96 and 97 .IR 9.rc : 98 they move 99 .B $PLAN9/bin 100 to the end of the path. 101 .SH EXAMPLES 102 Search for greek in the password file: 103 .IP 104 .EX 105 $ 9 grep '[α-ζ]' /etc/passwd 106 .EE 107 .PP 108 Start an 109 .MR rc (1) 110 with the Plan 9 commands in the path before the system commands, 111 and then run the Unix 112 .IR ls : 113 .IP 114 .EX 115 $ 9 rc 116 % u ls 117 .EE 118 .SH SOURCE 119 .B \*9/bin/9 120 .br 121 .B \*9/bin/9.rc 122 .br 123 .B \*9/bin/u 124 .br 125 .B \*9/bin/u.rc 126 .SH SEE ALSO 127 .MR intro (1) 128 .SH BUGS 129 Some shell configurations 130 (notably, oh-my-zsh) 131 define 132 .B 9 133 as an alias for 134 .B cd 135 .BR \-9 , 136 which makes the 137 .I 9 138 command described here inaccessible. 139 In such shells, it is necessary to 140 .B unalias 141 .B 9 142 in your initialization scripts.