Errata

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The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question



Version Location Description Submitted By Corrected
Printed Page xxii
The following text was added to the Preface

"We have a web site for the book, where we'll list examples,
errata, and any plans for future editions. You can access
this page at:

http://www.oreilly.com/catalog/9781565920545/

 Anonymous  Mar 2000
Printed Page 25
para. 5, line 2

"For example, print 'Bob\'s hair is brown' will not give you": changed font of the second
apostrophe to match the font of the first and last apostrophe

 Anonymous  Aug 1998
Printed Page 74
Beginning of third paragraph.

Sometimes your UNIX software will set up TERM correctly;

Now reads:

Sometimes your UNIX Software will not set up TERM correctly;

 Anonymous  Jun 1999
Printed Page 80
In the third paragraph, the following text was deleted

"Any variable can become an environment variable. First it
must be defined as usual; then it must be exported
with the command:

export varnames"

This text was was replaced with:

"Any variable can become an environment variable, and new
variables can be created that are environment variables.
Environment variables are created with the command:

export varnames

If the names in varnames already exist, then those variables
become environment variables. If they don't, then the shell
creates new variables that are environment variables.


 Anonymous  Mar 2000
Printed Page 87
In Figure 4-1, the string ".fred" in part (a) should be ". fred".

Anonymous 
Printed Page 94
the code lines

IFS=,
print $*

now reads:

IFS=,
print "$*"

 Anonymous  Mar 1999
Printed Page 97
1st entry in table: in "-word": made the hyphen an en-dash

Anonymous  Jan 1998
Printed Page 98
same fix as on p. 97 to para. 5 line 3 and to the next-to-last

line on this page

 Anonymous  Jan 1998
Printed Page 105
In the the last item of the second bulleted list, an additional

thin space was placed between "N" and "" in the string "N".

Anonymous  Mar 2000
Printed Page 113
ninth line from the top of the page: changed

ls -l | grep -i '^.{41}$date' | cut -c55-

to

ls -l | grep -i "^.{41}$date" |cut -c55-

 Anonymous  May 1998
Printed Page 116
code lines 1-6, replaced

function pushd {
dirname=$1
cd ${dirname:?"missing directory name."}
DIRSTACK="$dirname ${DIRSTACK:-$PWD}"
print "$DIRSTACK"
}

with

function pushd
{
dirname=$1
cd ${dirname:?"missing directory name."}
DIRSTACK="$PWD ${DIRSTACK:-$OLDPWD}"
print "$DIRSTACK"
}

 Anonymous  Aug 1998
Printed Page 116
para. 4, lines 1-3: changed

"The third line of the function pushes the new directory onto
the stack. The expression ${DIRSTACK:-$PWD} evaluates to
$DIRSTACK if it is non-null or $PWD (the current directory)
if it is null."

to

"The third line of the function pushes the directory that
was current before the change onto the stack. The expression
${DIRSTACK:-$OLDPWD} evaluates to $DIRSTACK if it is non-null
or $OLDPWD (the current directory before cd) if it is null."

("S{DIRSTACK:-$OLDPWD}", "$DIRSTACK", "$OLDPWD" and "cd" are
bold.)

 Anonymous  Aug 1998
Printed Page 126
The following text was added before Table 5-1

"Note that these operators compare the lexicographic values
of strings, so that "10" < "2".

 Anonymous  Mar 2000
Printed Page 157

The code in the middle of the page used to read:

sort -nr $filename ¦ head -$howmany

It now reads:

sort -nr $filename ¦ head $howmany

 Anonymous  Mar 2000
Printed Page 166
The following text was appended to the footnote

"However, other C operations, like the increment and decrement
operators ++ and --, do not have Korn shell equivalents."

 Anonymous  Mar 2000
Printed Page 172

The top of the page currently reads:

else
cd $dirname
dirname=$1

It should read:

else
# normal case of pushd dirname
dirname=$1
cd $dirname

 Anonymous 
Printed Page 179

The "typeset -uR5" example in Table 6-6 used to read:

"VWXYZ"

It now reads:


"WXYZ"

Anonymous  Mar 2000
Printed Page 185
The underlying operating system supports up to 16 open files

(or more, depending on the version of Unix), but the shell will only parse
0-9. So this page needs to be corrected to say 10 instead of 16.

 Anonymous 
Printed Page 188
In the code example,

1,/^[]*$/d

now reads:

1,/^[ ]*$/d

 Anonymous  Jun 1999
Printed Page 203

The second paragraph used to read:

"...all whitespace in the lines from the fill is preserved..."

It now reads:

"...trailing whitespace in the lines from the fill is preserved..."

 Anonymous  Mar 2000
Printed Page 208

Table 7-5 used to read:

row #5: '$dave' | $dave
row #6: '$dave' | 'bob'

It now reads:

row #5: '$dave' | $dave
row #6: \'$dave\' | 'bob'

 Anonymous  Mar 2000
Printed Page 209
code line 5, replaced

awk '{FS=":"; print $1, $6}' /etc/passwd |

with

awk 'BEGIN {FS=":"} {print $1, $6}' /etc/passwd

 Anonymous  Aug 1998
Printed Page 209
para. 9, line 3: changed "The FS=":" is analogous"

to "The BEGIN{FS=":"} is analogous"

 Anonymous  Aug 1998
Printed Page 214
In the function makecmd, should be replaced with \t

Anonymous 
Printed Page 272
The following text was added to the list of limitations

"9. Because the lines of a script being debugged are read
into an array, and arrays can only hold up to 1024 elements,
kshdb will not work on scripts of more than 1024 lines. One
workaround to this might be to remove lines from the script
that contain only comments or whitespace.

 Anonymous  Mar 2000
Printed Page 283
in the footnote, changed NAND to XOR

Anonymous  Jan 1998