getpid.sh 1.1 KB

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  1. #!/bin/sh
  2. # ngIRCd Test Suite
  3. # $Id: getpid.sh,v 1.5 2006/08/05 00:15:28 alex Exp $
  4. # did we get a name?
  5. [ $# -ne 1 ] && exit 1
  6. # detect flags for "ps" and "head"
  7. UNAME=`uname`
  8. if [ $UNAME = "FreeBSD" ]; then
  9. PS_FLAGS="-a"; PS_PIDCOL="1"; HEAD_FLAGS="-n 1"
  10. elif [ $UNAME = "A/UX" ]; then
  11. PS_FLAGS="-af"; PS_PIDCOL="2"; HEAD_FLAGS="-1"
  12. elif [ $UNAME = "GNU" ]; then
  13. PS_FLAGS="-ax"; PS_PIDCOL="2"; HEAD_FLAGS="-n 1"
  14. elif [ $UNAME = "Linux" ]; then
  15. PS_FLAGS="ax"; PS_PIDCOL="1"; HEAD_FLAGS="-n 1"
  16. elif [ $UNAME = "SunOS" ]; then
  17. PS_FLAGS="-af"; PS_PIDCOL=2; HEAD_FLAGS="-n 1"
  18. else
  19. PS_FLAGS="-af"; PS_PIDCOL="2"; HEAD_FLAGS="-n 1"
  20. ps $PS_FLAGS > /dev/null 2>&1
  21. if [ $? -ne 0 ]; then PS_FLAGS="a"; PS_PIDCOL="1"; fi
  22. fi
  23. # debug output
  24. #echo "$0: UNAME=$UNAME"
  25. #echo "$0: PS_FLAGS=$PS_FLAGS"
  26. #echo "$0: PS_PIDCOL=$PS_PIDCOL"
  27. #echo "$0: HEAD_FLAGS=$HEAD_FLAGS"
  28. # search PID
  29. ps $PS_FLAGS > procs.tmp
  30. cat procs.tmp | \
  31. grep -v "$0" | grep "$1" | \
  32. awk "{print \$$PS_PIDCOL}" | \
  33. sort -n > pids.tmp
  34. pid=`head $HEAD_FLAGS pids.tmp`
  35. rm -rf procs.tmp pids.tmp
  36. # validate PID
  37. [ "$pid" -gt 1 ] > /dev/null 2>&1
  38. [ $? -ne 0 ] && exit 1
  39. echo $pid
  40. exit 0
  41. # -eof-