02-05-2008
what is wrong with this tr -d?
here is my command in bash shell on Mac OS X tiger:
history | tr -d emacs
here is what I get:
hitory | grp "" | tr -d ""
hitory | grp "" | tr -d """"
hitory | grp "" | tr -d ''
hitory | grp "" | tr -d ''
hitory | grp "" | tr -d ''
hitory | grp "" | tr -d ''
hitory | grp "" | tr -d ''
hitory | grp "" | tr -d ''
hitory | grp "" | tr -d ''
hitory | grp "" | tr -d ``
hitory | grp "" | tr -d ""
hitory | grp "" | tr -d ""
hitory | grp "" | tr -d ""
hitory | grp "" | tr -d ""
sadly it removed all ascii characters contained within "emacs", any help appreciated
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grp.h(3HEAD) Headers grp.h(3HEAD)
NAME
grp.h, grp - group structure
SYNOPSIS
#include <grp.h>
DESCRIPTION
The <grp.h> header declares the structure group, which includes the following members:
char *gr_name /* name of the group */
gid_t gr_gid /* numerical group ID */
char **gr_mem /* pointer to a null-terminated array of character */
/* pointers to member names */
The gid_t type is defined as described in <sys/types.h> (see types(3HEAD)).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO
getgrnam(3C), types.h(3HEAD), attributes(5), standards(5)
SunOS 5.10 10 Sep 2004 grp.h(3HEAD)