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16 .Nd deliver portions of path names
26 utility deletes any prefix ending in
30 .Pq if present in Ar string
34 result on the standard output. It is normally used inside substitution marks
35 (\fB`\|`\fR) within shell procedures.
39 is a string with no special significance attached to any of
40 the characters it contains.
44 utility delivers all but the last level of the path name in
49 for descriptions of the following environment variables
50 that affect the execution of
63 .Ss Example 1 Setting environment variables
64 The following example, invoked with the argument
65 .Pa /home/sms/personal/mail
66 sets the environment variable
74 .Pa /home/sms/personal :
76 example% NAME=`basename \|$HOME/personal/mail`
77 example% MYMAILPATH=`dirname \|$HOME/personal/mail`
79 .Ss Example 2 Compiling a file and moving the output
80 This shell procedure, invoked with the argument
81 .Pa /usr/src/bin/cat.c ,
82 compiles the named file and moves the output to
84 in the current directory:
87 example% mv a.out `basename $1 .c`
89 .Sh INTERFACE STABILITY
97 These utilities conform to the following standards. See