Dumbie(NEwbie) prompt type question

[MC Wasted]

Hi,

Embarressed to ask this. I am trying to write an auditing script. In it I
have to do a long search (using 'find'), whilst this goes off and takes some
time, I would like to provide the user with an indicator that the program is
still running.

Something like "working.....", that keeps refreshing until the command has
completed would be good

My scripting isn't that great.

Can anyone help????

thanx,

MC

[Richard Howlett]

There are probably better ways but this is a code fragment I often use as a
quick and dirty method of showing progress of a command. It ain't pretty but
it works well enough.

It displays a dot every 2 seconds until your process finishes. Just add this
near the top of your script and put your command where indicated.

The line starting with trap is very important. Without this if you abort the
script (using Ctrl-C or Del etc etc) you will continue to get a dot
displayed every 2 seconds until you manually remove the $TEMP file.

TEMP=/tmp/temp.$$
trap 'rm -f $TEMP; exit 0' 0 1 2 3 15

show_progress()
{
while [ -r $TEMP ] ; do
echo -n .
sleep 2
done
}

echo -n "Working "
touch $TEMP
show_progress &

#### put your find command here ####

rm -f $TEMP
echo done

--
Richard Howlett

mailto:ric...@howie.org.uk

[Brian Hiles]

MC Wasted <two...@hotmail.com> wrote:
> Embarressed to ask this. I am trying to write an auditing script. In it I
> have to do a long search (using 'find'), whilst this goes off and takes some
> time, I would like to provide the user with an indicator that the program is
> still running.

Like this? See the example code in the embedded man page.

=Brian

#! /bin/echo error: only source
#*TAG:25875 5:Feb 3 1973:0644:busycursor:
# Author: Brian Hiles <b...@iname.com>
# Copyright: (c) 1998-2001
# Date: 1996/09
# Description: implement an animated "busy" cursor
# Name: busyprompt
# Project: @(#)busycursor.sh 1.0 1996/09 b...@iname.com (Brian Hiles)
# Thanks-to: Peter Turnbull <pet...@deet.gov.au>
# Usage: busycursor [-number] [prompt]
# Version: 1.00

#01 CALIBRATE
typeset -i _inst=0
typeset -ix calibration
((!calibration)) && calibration=$(
# 5000 is 1st approx of iterations sufficient to give a meaningful delay
IFS='ms
' # <= newline
set -- $(
{ time { typeset -i _inst
while (((_inst+=1)<=5000))
do :
done 2>&1
}
} 2>&1
)
# 0.25 below is to mean a target of 4 "frames" per second
awk "BEGIN { print 0.25/$2*5000 }" /dev/null
)

#02
function _delayloop # [iterations]
{ set -o noglob
typeset -i iter guess=${1:-5000}
while (((iter+=1)<=guess))
do :
done
}

#03 SELECT CURSOR, LOOP FOREVER
function busycursor # [-number] [string]
{ set -o noglob
typeset -i _1=-1 _2 _3
typeset IFS anim cursnum
trap 'tput cnorm' EXIT
trap done=1 TERM
tput civis
[[ $1 = -+([0-9]) ]] && cursnum=${1#-} shift
(($#)) && print -nr "$@"
# make cursor animation array: if anim array already exists, use it,
# else if CURSORS array exists, load nth one (random if not specified),
# else use a default.
if ((${#anim[@]}))
then :
elif ((${#CURSORS[@]}>${cursnum:-0}))
then IFS='
"' # cursor animation frames are double-quote or newline delimited
set -A anim -- ${CURSORS[${cursnum:-RANDOM%(${#CURSORS[@]}-1)}]}
else set -A anim \| / - \\ # default busy cursor
fi
while ((!${done:-0}))
do print -nru3 -- "${anim[_3=(_1+=1)%${#anim[@]}]}"
_delayloop $calibration
_2=0
while (((_2+=1)<=${#anim[$_3]}))
do print -nu3 \\b
done
done 3>&1
}

#04 CURSOR DATABASE
# Sample cursors to choose; "frames" are double-quote or newline delimited
# (bsh: the first seven are mine)
[[ -z $CURSORS ]] && set -A CURSORS \
'|"/"-"\' \
'8//=\\_;"8//=/\_;' \
'||||||"//////"------"\\\\\\' \
'>--->---"->--->--"-->--->-"--->--->' \
'-"=">")"|"("<"=' \
' .oOo. ". .oOo."o. .oOo"Oo. .oO"oOo. .o".oOo. .' \
'10% "20% "30% "40% "50% "60% "70% "80% "90% ' \
'| " | " | " |" | " | ' \
'_ " _ " _ " _" -" - " - "- ' \
'_ " _ " _ " _" |" -" - " - "- "| ' \
'o___"_o__"__o_"___o"___O"__O_"_O__"O___' \
'O_O"o_o"_o_"_O_' \
'> "< " > " < " > " < " > " < " >" <' \
'> "-> "--> "---> "---->" <" <-" <--" <---"<----' \
'>><<"<<>>"><><' \
'<><>"><><' \
' o o" O O"o o "O O ' \
'oooo"OOOO" "oooO"ooOo"oOoo"Oooo' \
'^_^"_^_"^-^"-^-' \
'-_-"_-_' \
'(_)"[-]"{+}' \
'^*^"*^*' \
'----">---"->--"-->-"--->"*^&%' \
'>---"->--"-->-"--->"---<"--<-"-<--"<---' \
'()")(' \
'()")("))"((' \
' - " = " _ " -" =" _"- "= "_ ' \
'<->">-<' \
'|___|"|---|"| |' \
'|___|"|^__|"|_^_|"|__^|"|--^|"|-^-|"|^--|"|---|' \
' o o"o o ' \
'_o_o"o_o_"_oo_"o__o' \
'o " o " o " o" o " o ' \
'<()>"<)(>">()<">)(<' \
'oo " oo " oo" o o"o o" oo ' \
'o " o " o" o " o " o " o " o' \
' o " o " o "o " o' \
'(-)")-("(_)")_(' \
'!!!"___" "+++' \
'0"1"2"3"4"5"6"7"8"9' \
' ", " , " , " ," ,," ,,,",,,,' \
'@-@"@_@"@+@"+@+"_@_"-@-' \
' o"o " oo " ooo"oooo"o o' \
'/_/"\_\"/_\"\_/' \
'<=> ">=< " <=> " >=< " <=>" >=<' \
'*-*" _ " ^ " ~ "+|+' \
'*&&*"&**&' \
'_-_-"-_-_"-__-"-___"____"___-"__--"_---"----' \
'( )"(oo)") o("(o )")oo(' \
'__--"--__"-__-"_--_' \
'___-"___="__-="__=="_-=="_==="-==="====' \
'_|_"|__"__|"___' \
'<_|_>"<- ->">-+-<">_^_<' \
'--__"__--' \
'HELP" ME " GET"OUT!' \
'SIT "BACK "AND "ENJOY' \
'REALLY"IT "IS "A "BIT "SILLY "TO "WATCH "THIS! ' \
'A"B"C"D"E"F"G"H"I"J"K"L"M"N"O"P"Q"R"S"T"U"V"W"X"Y"Z' \
'/-\"/_\"\_/"\-/'

#05 EMBEDDED MANPAGE FOR "src2man"
: '
#++
NAME
busycursor - show an animated "busy" cursor

SYNOPSIS
busycursor [-number] [prompt]

DESCRIPTION
Show an animated "busy" cursor indication of a concurently running
program.

OPTIONS
-<number> - Use cursor number <number> from the CURSORS database.

RETURN CODE

EXAMPLE
set +o bgnice # interactive priority for cursor
trap : HUP INT QUIT TERM # signals get passed off to busy prompt
busycursor -0 please wait... & # note: always invoked in background
sleep 5 # ... the "busy" code goes here ...
print " done." # this supplies the necessary newline
kill $! 3>&- # terminate busy prompt; flush output
trap - HUP INT QUIT TERM # reset signal handlers to default
set -o bgnice # reset priority of bg processes

ENVIRONMENT
CURSORS - Database of available cursors.

SEE ALSO
eread(3S)

BUGS

#--
'