Welcome to the Linux Foundation Forum!
User Guide confusion
tw3ak
Posts: 37
in Command Line
nEWb here,
I've gotten through one user's guide that was useless. I've found a rather good one that I can understand.
As an exercise of the book I'm going thru man pages and I'm in "find" this is part of the man explanation :find -size [[+|-[[
I understand that <> anything there is replaced with what is needed to operate, also that the square brackets normally do the same however they have brackets inside brackets? I think I understand the + and - what they are looking for but why the "pipe"?
0
Comments
-
"|", in this context, means "or" (not "pipe"). That is, [+|-] means "optional plus or minus".
As an example, the "man grep" page includes [-e PATTERN | -f FILE] - which means I can use grep -e with a pattern, or grep -f with a file, but I can't use -e and -f at the same time.
Nested brackets are allowed; for example, in the man gcc page (a bit of a long one to read through, and probably only of interest if you plan to be writing software in the very near future, but it's the first example I found), I see the following (among other options): [-Dmacro[=defn]...]; that means that I can use -Dmacro if I want, and if I do so I have the option of adding a definition to the end of the command after an equals sign (but I can't do that without the -Dmacro).0
Categories
- All Categories
- 158 LFX Mentorship
- 158 LFX Mentorship: Linux Kernel
- 847 Linux Foundation IT Professional Programs
- 390 Cloud Engineer IT Professional Program
- 185 Advanced Cloud Engineer IT Professional Program
- 87 DevOps Engineer IT Professional Program
- 154 Cloud Native Developer IT Professional Program
- 152 Express Training Courses & Microlearning
- 149 Express Courses - Discussion Forum
- 3 Microlearning - Discussion Forum
- 7.1K Training Courses
- 50 LFC110 Class Forum - Discontinued
- 74 LFC131 Class Forum
- 56 LFD102 Class Forum
- 253 LFD103 Class Forum
- 26 LFD110 Class Forum
- 50 LFD121 Class Forum
- 3 LFD123 Class Forum
- 1 LFD125 Class Forum
- 19 LFD133 Class Forum
- 10 LFD134 Class Forum
- 19 LFD137 Class Forum
- 1 LFD140 Class Forum
- 73 LFD201 Class Forum
- 8 LFD210 Class Forum
- 6 LFD210-CN Class Forum
- 2 LFD213 Class Forum - Discontinued
- LFD221 Class Forum
- 128 LFD232 Class Forum - Discontinued
- 3 LFD233 Class Forum
- 5 LFD237 Class Forum
- 25 LFD254 Class Forum
- 745 LFD259 Class Forum
- 111 LFD272 Class Forum - Discontinued
- 4 LFD272-JP クラス フォーラム - Discontinued
- 16 LFD273 Class Forum
- 434 LFS101 Class Forum
- 3 LFS111 Class Forum
- 4 LFS112 Class Forum
- 5 LFS116 Class Forum
- 9 LFS118 Class Forum
- 2 LFS120 Class Forum
- 11 LFS142 Class Forum
- 9 LFS144 Class Forum
- 6 LFS145 Class Forum
- 6 LFS146 Class Forum
- 7 LFS147 Class Forum
- 21 LFS148 Class Forum
- 17 LFS151 Class Forum
- 6 LFS157 Class Forum
- 89 LFS158 Class Forum
- 1 LFS158-JP クラス フォーラム
- 14 LFS162 Class Forum
- 2 LFS166 Class Forum - Discontinued
- 9 LFS167 Class Forum
- 4 LFS170 Class Forum
- 2 LFS171 Class Forum - Discontinued
- 4 LFS178 Class Forum - Discontinued
- 4 LFS180 Class Forum
- 3 LFS182 Class Forum
- 7 LFS183 Class Forum
- 2 LFS184 Class Forum
- 41 LFS200 Class Forum
- 737 LFS201 Class Forum - Discontinued
- 3 LFS201-JP クラス フォーラム - Discontinued
- 22 LFS203 Class Forum
- 141 LFS207 Class Forum
- 3 LFS207-DE-Klassenforum
- 3 LFS207-JP クラス フォーラム
- 302 LFS211 Class Forum - Discontinued
- 56 LFS216 Class Forum - Discontinued
- 60 LFS241 Class Forum
- 51 LFS242 Class Forum
- 39 LFS243 Class Forum
- 17 LFS244 Class Forum
- 8 LFS245 Class Forum
- 1 LFS246 Class Forum
- 1 LFS248 Class Forum
- 121 LFS250 Class Forum
- 3 LFS250-JP クラス フォーラム
- 2 LFS251 Class Forum
- 163 LFS253 Class Forum
- 1 LFS254 Class Forum - Discontinued
- 3 LFS255 Class Forum
- 15 LFS256 Class Forum
- 2 LFS257 Class Forum
- 1.4K LFS258 Class Forum
- 12 LFS258-JP クラス フォーラム
- 140 LFS260 Class Forum
- 165 LFS261 Class Forum
- 44 LFS262 Class Forum
- 82 LFS263 Class Forum - Discontinued
- 15 LFS264 Class Forum - Discontinued
- 11 LFS266 Class Forum - Discontinued
- 25 LFS267 Class Forum
- 27 LFS268 Class Forum
- 38 LFS269 Class Forum
- 11 LFS270 Class Forum
- 202 LFS272 Class Forum - Discontinued
- 2 LFS272-JP クラス フォーラム - Discontinued
- 2 LFS274 Class Forum - Discontinued
- 4 LFS281 Class Forum - Discontinued
- 30 LFW111 Class Forum
- 265 LFW211 Class Forum
- 190 LFW212 Class Forum
- 17 SKF100 Class Forum
- 2 SKF200 Class Forum
- 3 SKF201 Class Forum
- 800 Hardware
- 200 Drivers
- 68 I/O Devices
- 37 Monitors
- 104 Multimedia
- 175 Networking
- 92 Printers & Scanners
- 85 Storage
- 765 Linux Distributions
- 82 Debian
- 67 Fedora
- 20 Linux Mint
- 13 Mageia
- 23 openSUSE
- 149 Red Hat Enterprise
- 31 Slackware
- 13 SUSE Enterprise
- 356 Ubuntu
- 472 Linux System Administration
- 39 Cloud Computing
- 71 Command Line/Scripting
- Github systems admin projects
- 96 Linux Security
- 78 Network Management
- 102 System Management
- 48 Web Management
- 74 Mobile Computing
- 19 Android
- 42 Development
- 1.2K New to Linux
- 1K Getting Started with Linux
- 387 Off Topic
- 120 Introductions
- 178 Small Talk
- 28 Study Material
- 837 Programming and Development
- 311 Kernel Development
- 508 Software Development
- 1.8K Software
- 266 Applications
- 183 Command Line
- 5 Compiling/Installing
- 988 Games
- 318 Installation
- 107 All In Program
- 107 All In Forum
Upcoming Training
-
August 20, 2018
Kubernetes Administration (LFS458)
-
August 20, 2018
Linux System Administration (LFS301)
-
August 27, 2018
Open Source Virtualization (LFS462)
-
August 27, 2018
Linux Kernel Debugging and Security (LFD440)