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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
code, 152–53
crontab entries, validating, 147–52
code, 148–50
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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