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journalctl: imply -n1000 when -e is used

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Make sure the pager does not have to buffer an unbounded number of log
messages, by default.
This commit is contained in:
Lennart Poettering 2013-03-07 21:49:12 +01:00
parent 2e4015f3e7
commit fe59e38bef
2 changed files with 12 additions and 4 deletions
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12
man/journalctl.xml
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@ -168,10 +168,14 @@
<listitem><para>Immediately jump to
the end of the journal inside the
implied pager tool. Very useful in
combination with the
<option>-b</option> option. Note that
this is only supported for the
implied pager tool. This implies
<option>-n1000</option> to guarantee
that the pager won't buffer logs of
unbounded size. This may be overriden
with an explicit <option>-n</option>
with some other numeric value on the
command line. Note that this option is
only supported for the
<citerefentry><refentrytitle>less</refentrytitle><manvolnum>1</manvolnum></citerefentry>
pager.</para></listitem>
</varlistentry>

4
src/journal/journalctl.c
View File

@ -221,6 +221,10 @@ static int parse_argv(int argc, char *argv[]) {
case 'e':
arg_pager_end = true;
if (arg_lines < 0)
arg_lines = 1000;
break;
case 'f':