ENGLISH

GNU Parallel 2018

By Ole Tange

Book information

Year
2018
ISBN
9781387509881
Language
english
Format
PDF
Filesize
536 kB (548877 bytes)
Pages
112\112
Library
Zenodo
Time added
2021-04-24 13:12:08

Description

GNU Parallel is a UNIX shell tool for running jobs in parallel. Learn how to use GNU Parallel from the developer of GNU Parallel. 1 How to read this book 2 Learn GNU Parallel in 15 minutes 2.1 Input sources 2.2 Build the command line 2.3 Control the output 2.4 Control the execution 2.5 Pipe mode 2.6 That's it 3 Make test files 4 Input sources 4.1 A single input source 4.2 Multiple input sources 4.2.1 Link arguments from input sources 4.3 Change the argument separator. 4.4 Change the record delimiter 4.5 End-of-file value for input source 4.6 Skipping empty lines 5 Build the command line 5.1 No command means arguments are commands 5.2 Replacement strings 5.2.1 The 7 predefined replacement strings 5.2.2 Change the replacement strings 5.2.3 Perl expression replacement string 5.2.3.1 Functions for perl expression replacement strings 5.2.4 Dynamic replacement strings 5.2.5 Positional replacement strings 5.2.6 Positional perl expression replacement string 5.2.7 Input from columns 5.2.8 Header defined replacement strings 5.2.9 More pre-defined replacement strings with --plus 5.2.10 Dynamic replacement strings with --plus 5.3 Insert more than one argument 5.4 Quote the command line 5.5 Trim space from arguments 5.6 Respect the shell 6 Control the output 6.1 Tag output 6.2 See what is being run 6.3 Force same order as input 6.4 Output before jobs complete 6.4.1 Buffer on disk 6.5 Save output into files 6.6 Save to CSV/TSV 6.7 Save to an SQL base 6.7.1 CSV as SQL base 6.7.2 DBURL as table 6.7.3 Use multiple workers 6.8 Save output to shell variables 6.8.1 Do not read from a pipe 6.8.1.1 Use a temporary file 6.8.1.2 Use process substitution 6.8.1.3 Use a FIFO 6.8.2 env_parset 7 Control the execution 7.1 Number of simultaneous jobs 7.2 Shuffle job order 7.3 Interactivity 7.4 A terminal for every job 7.5 Timing 7.6 Progress information 7.7 Logfile 7.8 Resume jobs 7.9 Termination 7.9.1 Unconditional termination 7.9.2 Termination dependent on job status 7.10 Retry failing commands 7.10.1 Termination signals 7.11 Limit the resources 7.11.1 Make your own limitation 8 Remote execution 8.1 Sshlogin 8.1.1 SSH command to use 8.1.2 Multiple servers 8.1.3 Divide servers into groups 8.1.3.1 Host group defined by argument 8.2 Transfer files 8.3 Working dir 8.4 Avoid overloading sshd 8.5 Ignore hosts that are down 8.6 Run the same commands on all hosts 8.7 Transfer environment variables and functions 8.8 Show what is actually run 9 Pipe mode 9.1 Block size 9.2 Records 9.3 Record separators 9.4 Header 9.5 Fixed length records 9.6 Programs not reading from stdin 9.6.1 --cat 9.6.2 --fifo 9.7 Use --pipepart for high performance 9.8 Duplicate all input using --tee 10 Miscellaneous features 10.1 Shebang 10.1.1 Input data and parallel command in the same file 10.1.2 Parallelize existing scripts with --shebang-wrap 10.2 Semaphore 10.2.1 Mutex 10.2.2 Counting semaphore 10.2.3 Semaphore with timeout 10.3 Informational 10.4 Profiles 11 GNU Free Document License 0. Preamble 1. Applicability and definitions 2. Verbatim copying 3. Copying in quantity 4. Modifications 5. Combining documents 6. Collections of documents 7. Aggregation with independent works 8. Translation 9. Termination 10. Future revisions of this license 11. Relicensing Addendum: how to use this license for your documents

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