etc/usr/daily

   1 #!/bin/sh
   2 #
   3 # daily - daily cleanup of the system.
   4
   5 # Doesn't make sense when running from CD
   6 if [ -f /CD ]
   7 then    exit
   8 fi
   9
  10 case "$#:$1" in
  11 1:cron|1:boot)
  12     caller=$1
  13     ;;
  14 *)  echo >&2 "Usage: $0 cron|boot"
  15     exit 1
  16 esac
  17
  18 test -d /usr/adm || exit
  19 cd /usr/adm || exit
  20
  21 # Last run must have been on a previous day.
  22 timestamp=daily.lasttime
  23 if test -f $timestamp
  24 then
  25     set -- `ls -lT $timestamp`
  26     test "$6 $7 $9" = "$(date '+%b %d %Y')" && exit
  27 fi
  28
  29 # Update last-run time
  30 echo >$timestamp
  31
  32 # Remove three day old files from various tmp dirs.
  33 cleantmp -3 /tmp /usr/tmp /usr/preserve /usr/spool/lpd /usr/spool/at/past
  34
  35 # Truncate log files in /usr/adm.
  36 test -d old || mkdir old || exit
  37
  38 cycle()
  39 {
  40     # Cycle a log file if larger than a size in kilobytes.
  41     local size="`expr "$1" + "$1"`"
  42     local log="$2"
  43
  44     if test -f "$log" && test -n "$(find "$log" -size +"$size")"
  45     then
  46         test -f "old/$log.2" && cp -p "old/$log.2" "old/$log.3"
  47         test -f "old/$log.1" && cp -p "old/$log.1" "old/$log.2"
  48         cp -p "$log" "old/$log.1"
  49         : > "$log"
  50     fi
  51 }
  52
  53 cycle 100 wtmp
  54 cycle 100 log
  55 cycle  20 ftplog
  56 cycle 200 aftplog
  57
  58 # Make copies of /etc/passwd and /etc/shadow if they have been changed.
  59 for file in passwd shadow
  60 do
  61     if cmp -s /etc/$file old/$file.1
  62     then
  63         # Fine.
  64     else
  65         test -f old/$file.2 && cp -p old/$file.2 old/$file.3
  66         test -f old/$file.1 && cp -p old/$file.1 old/$file.2
  67         test -f /etc/$file && cp -p /etc/$file old/$file.1
  68     fi
  69 done
  70
  71 # Update manpage index but don't warn about nonexistant dirs
  72 /usr/libexec/makewhatis -f 2>/dev/null
  73
  74 # Continue with a local script if present.
  75 test -f /usr/local/etc/daily && sh /usr/local/etc/daily $caller
  76 exit 0