chiark / gitweb /
xterm-title: Allow $TERM = screen as well.
[bin.git] / crondiv
1 #! /bin/bash
2
3 # "Divide" a crontab frequency down by the first argument on the command line,
4 # logging to the second argument, and executing the remainder.
5
6 if [ "X$1" = "X" -o "X$2" = "X" -o "X$3" = "X" ]; then
7         echo "Usage: $0 frequency logfile command [ arguments ]" >&2
8         exit 1
9 fi
10
11 FREQUENCY=$1
12 LOGFILE=$2
13 shift 2
14
15 if [ -f $LOGFILE ]; then
16         LASTEXEC=$(($(tail -n 1 $LOGFILE)+1))
17 else
18         LASTEXEC=1
19 fi
20
21 if [ $LASTEXEC -ge $FREQUENCY ]; then
22         echo "$*" executed at $(date) >> $LOGFILE
23         echo 0 >> $LOGFILE
24         eval "$*"
25 else
26         echo $LASTEXEC >> $LOGFILE
27 fi
28