Ubuntu Unleashed 2019 Edition: Covering 18.04, 18.10, 19.04

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

special characters,  264 – 267

until   statements,  280 – 281

variable    types,   259

while   statements,  278 – 280

scripts directory, 432

Scylla, 542

SDKs (software development kits), 653 – 654 , 697 – 699

search

for files   and programs,    12

find    command,     167 – 170

grep    command,     170 – 171

locate  command,     174

search engines for Ubuntu information, 31 – 32

Secure Shell. See SSH (Secure Shell); ssh command

security

access  control,    Apache,  480 ,   483