Index

C

\c escape sequence, 10

calc script, 73–75

calculating

currency values, 188–92

loan payments, 84–86

calculators

floating-point arbitrary-precision, 29–31

interactive, 73–75

case statement, 241, 313

cat command, 46, 212, 270

Census Bureau, 180

CGI environment, 204–5

CGI scripts, 201, 203

cgi-bin directory, 203, 243

cgrep script, 102–4

changetrack script, 196, 196–200

chattr command, 55

checkexternal script, 232–35

checkfor function, 267

checkForCmdInPath method, 13

checking spelling, 75–76

checklibrary script, 182–86

checklinks script, 178, 230–32

checkspelling script, 75–76

chown command, 293

Christiansen, Tom, 3

code element, 183

color sequences, ANSI. See ANSI color sequences

commands, user. See user commands

compress program, 104, 106

compressed files

code, 104–7

ensuring maximally compressed files, 107–9

connecttime script, 166–68

contact forms, processing, 211–14

contactus.html. web page, 213

content mirroring, 244

convertatemp script, 82–84

counter script, 221–25

cron jobs, 152–54

crontab entries, validating, 147–52

hacking script, 152

results of script, 151

running script, 151

crontab file, 147, 151, 285

.cshrc file, 123

curl utility, 171

currency values, calculating, 188–92

cut command, 20, 86, 262, 311

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