Ubuntu Unleashed 2019 Edition: Covering 18.04, 18.10, 19.04

(singke) #1

wireless networks, 381


choosing    protocols,   383
configuring, 20 – 21
NICs (network interface cards), 362 – 363
security, 404 – 405
Ubuntu support for, 382 – 383

wireshark, 318


wish command, 258 – 259


Writer, 64


writing shell scripts


accessing   variable    values,  260
assigning variable values, 259 – 260
break statements, 286
built-in variables, 264
case statements, 284 – 286
command aliases, 255 – 256
comparison of expressions in pdksh and bash, 267 – 272
comparison of expressions in tcsh, 273 – 277
endless loops, 278 – 279
exit statements, 286
expr statements, 283 – 284
for statements, 277 – 278
functions, 286 – 287
if statements, 282 – 283
positional parameters, 260 – 262
repeat statements, 281
scheduling tasks, 262 – 264
select statements, 281 – 282
shift statements, 282
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