GREPHISTORY(1)GREPHISTORY(1)NAMEgrephistory - display file names from Usenet history file
SYNOPSISgrephistory [ -f filename ] [ -e ] [ -n ] [ -q ] [ -l ] [ -i ] [ -s ] [
Grephistory queries the dbz(3) index into the history(5) file for an
article having a specified Message-ID.
If messageid cannot be found in the database, the program prints ``Not
found'' and exits with a non-zero status. If messageid is in the data‐
base, the program prints the pathname and exits successfully. If no
pathname exists, the program will print ``/dev/null'' and exit success‐
fully. This can happen when an article has been cancelled, or if it
has been expired but its history is still retained. This is default
behaviour, which can be obtained by using the ``-n'' flag.
If the ``-q'' flag is used, then no message is displayed. The program
will still exit with the appropriate exit status. If the ``-e'' flag
is used, then grephistory will only print the filename of an existing
If the ``-l'' flag is used then the entire line from the history file
will be displayed.
If the ``-i'' flag is used, then grephistory will read a list of Mes‐
sage-ID's on standard input, one per line. Leading and trailing white‐
space is ignored, as are any malformed lines. It will print on stan‐
dard output those Message-ID's which are not found in the history data‐
base. This flag is used in processsing ``ihave'' control messages.
If the ``-s'' flag is used, then grephistory will read a similar list
from its standard input. It will print on standard output a list of
filenames for each article that is still available. This flag is used
in processsing ``sendme'' control messages.
To specify a different value for the history file and database, use the
Written by Rich $alz <email@example.com> for InterNetNews. This is
revision 1.5, dated 1993/01/29.
SEE ALSOdbz(3), history(5).