Bug#801390: Better defauls/flags for journalctl --since/--until

[Yuri D'Elia]

Package: systemd
Version: 227-1
Severity: wishlist
File: /bin/journalctl

journalctl shows the entire output since the beginning of the log.
This by itself is fine.

But if you have a persistent journal, and run journalctl in a tty, will
start/show the entries since the first available entry, which is often not what
you want.

I would love to have a "--since today" as a default for interactive usage.

It also turns out that --since/--until are very often necessary when using a
persistent journal. But there's no short flag for those.

Please add -S for --since and -U for --until.

-- Package-specific info:

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (900, 'unstable'), (800, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.2.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages systemd depends on:
ii  adduser         3.113+nmu3
ii  libacl1         2.2.52-2
ii  libapparmor1    2.10-2+b1
ii  libaudit1       1:2.4.4-4
ii  libblkid1       2.27-3
ii  libc6           2.19-22
ii  libcap2         1:2.24-12
ii  libcap2-bin     1:2.24-12
ii  libcryptsetup4  2:1.6.6-5
ii  libgcrypt20     1.6.3-2
ii  libkmod2        21-1
ii  liblzma5        5.1.1alpha+20120614-2.1
ii  libmount1       2.27-3
ii  libpam0g        1.1.8-3.1
ii  libseccomp2     2.2.3-2
ii  libselinux1     2.3-2+b1
ii  libsystemd0     227-1
ii  mount           2.27-3
ii  sysv-rc         2.88dsf-59.2
ii  udev            227-1
ii  util-linux      2.27-3

Versions of packages systemd recommends:
ii  dbus            1.10.0-3
ii  libpam-systemd  227-1

Versions of packages systemd suggests:
pn  systemd-container  <none>
ii  systemd-ui         3-4

-- Configuration Files:
/etc/systemd/journald.conf changed [not included]
/etc/systemd/resolved.conf changed [not included]
/etc/systemd/timesyncd.conf changed [not included]