I have a couple scripts I wrote in pdksh. I just upgraded to RH8, and now
whenever ksh runs from trn, I get 'stty: standard input: Inappropriate
ioctl for device. Can I fix that without rewriting it in a different
shell?
I started rewriting one of my scripts that gets called most often -- it
generates a random string of user-specified length, for use in filenames
or whatever. It's this:
#! /bin/ksh
typeset -i length="$1"
typeset -i hex_bytes=$(( (length + 1) / 2 ))
echo -n $(dd if=/dev/random bs=$hex_bytes count=1 2> /dev/null \
| od --address-radix=none --format=x \
| tr -d ' \n' \
| cut -b 1-$length)
I started rewriting it in bash, as this:
#! /bin/bash
length="$1"
let hex_bytes=($length+1)/2
echo -n $(dd if=/dev/random bs=$hex_bytes count=1 2> /dev/null \
| od --address-radix=none --format=x \
| tr -d ' \n' \
| cut -b 1-$length)
But the data never appears! The echo is executed (so says "set -x"). If
I add an echo after it, the buffer is flushed, but that defeats the point
of using "echo -n". What's wrong with this script? Thanks.
-- -eben ebQenW1@EtaRmpTabYayU.rIr.OcoPm home.tampabay.rr.com/hactar GEMINI: Your birthday party will be ruined once again by your explosive flatulence. Your love life will run into trouble when your fiancee hurls a javelin through your chest. -- Weird Al, _Your Horoscope for Today_
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