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bash sometimes outputs del character and sometimes not
From: |
gmott |
Subject: |
bash sometimes outputs del character and sometimes not |
Date: |
Tue, 13 May 2003 16:06:28 +0100 |
Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i686'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu'
-DCONF_VENDOR='pc' -DSHELL -DHAVE_CONFIG_H -D_GNU_SOURCE -I. -I. -I./include
-I./lib -O2 -march=i386 -mcpu=i686
uname output: Linux ruby 2.4.18-27.7.x #1 Wed Mar 26 10:50:35 EST 2003 i686
unknown
Machine Type: i686-pc-linux-gnu
Bash Version: 2.05a
Patch Level: 0
Release Status: release
Description:
bash may or may not output the del character depending on whether
adjacent characters are included within the same quotes
Repeat-By:
#the following loop will generate the entire character set from \1
through \377,
#and output each character, first alone,
#then followed/preceeded by an @ outside the quotes
#then followed/preceeded by an @ inside the quotes
#if you examine the od output you will find several del characters
"missing",
#apparently the ones where the @ was included within the quotes.
for((a=1;a<256;a=a+1));do
eval c=\$\'\\$(printf '%o' $a)\'
printf %s "$c" "$c"@ @"$c"@ @"$c" "$c" "$c@" "@$c@" "@$c"
done|od -t aco1z|less
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