Difference between revisions of "Parallel"
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| − | <code>[[wikipedia:GNU_parallel|parallel]]</code><ref>https://www.gnu.org/software/parallel/man.html</ref> allows the user to execute shell scripts or commands in parallel. | + | {{lowercase}} |
| + | <code>[[wikipedia:GNU_parallel|parallel]]</code><ref>https://www.gnu.org/software/parallel/man.html</ref> allows the user to execute shell scripts or [[commands]] in parallel. | ||
| + | |||
| + | [[brew install parallel]] | ||
| + | |||
| + | == Examples == | ||
| + | [[aws ec2 describe-regions]] --query "Regions[].{Name:RegionName}" --output text | [[parallel]] "echo {}; [[aws ec2 describe-instances]] --region {}" | ||
| + | |||
| + | |||
| + | your_command | parallel "echo {}; your_command2 {}" | ||
| + | |||
| + | ls | parallel git -C {} [[git fetch|fetch]] | ||
| + | ls | parallel git -C {} [[git pull|pull]] | ||
== Activities == | == Activities == | ||
=== Basic === | === Basic === | ||
| − | # [[ | + | # [[Execute a command in parallel by ssh]] in MACHINE1 and MACHINE2 using parallel |
# Read stackexchange questions about gnu-parallel: https://unix.stackexchange.com/questions/tagged/gnu-parallel?tab=votes&pagesize=50 | # Read stackexchange questions about gnu-parallel: https://unix.stackexchange.com/questions/tagged/gnu-parallel?tab=votes&pagesize=50 | ||
| − | # Install parallel in macOS: <code>brew install parallel</code> can conflict with <code>brew install moreutils</code> | + | # Install parallel in macOS: <code>[[brew install parallel]]</code> can conflict with <code>[[brew install moreutils]]</code> |
=== Intermediate === | === Intermediate === | ||
# Review different parallel options such as: <code>--keep-order</code> or <code>-k</code> which keep order in the output. Do not affect order of execution. | # Review different parallel options such as: <code>--keep-order</code> or <code>-k</code> which keep order in the output. Do not affect order of execution. | ||
# Update all your <code>[[git]]</code> repositories in a directory in macOS using parallel: <code>ls | parallel git -C {} fetch </code> | # Update all your <code>[[git]]</code> repositories in a directory in macOS using parallel: <code>ls | parallel git -C {} fetch </code> | ||
| + | |||
| + | == Related terms == | ||
| + | * [[Parallels]] | ||
| + | * <code>[[for]]</code> | ||
| + | * <code>[[pssh]]</code> | ||
| + | * <code>[[parallel --citation]]</code> | ||
| + | * <code>[[yarn workspaces foreach]] --paralell</code> | ||
| + | * [[PostgreSQL parallel query]] | ||
| + | * [[Android parallel apps]] | ||
| + | * [[Parallel computing]] | ||
| + | * [[ansible -B]], [[--background]] | ||
| + | * [[parallel --sshlogin]] | ||
| + | * [[pigz]], [[gipz]] parallel implementation | ||
== See also == | == See also == | ||
| − | * | + | * {{parallel}} |
| − | * | + | * {{xargs}} |
| + | * <code>{{moreutils}}</code> | ||
| + | * {{stress}} | ||
| + | * {{CPU}} | ||
[[Category:Linux]] | [[Category:Linux]] | ||
Latest revision as of 11:11, 3 September 2023
parallel[1] allows the user to execute shell scripts or commands in parallel.
brew install parallel
Examples[edit]
aws ec2 describe-regions --query "Regions[].{Name:RegionName}" --output text | parallel "echo {}; aws ec2 describe-instances --region {}"
your_command | parallel "echo {}; your_command2 {}"
ls | parallel git -C {} fetch
ls | parallel git -C {} pull
Activities[edit]
Basic[edit]
- Execute a command in parallel by ssh in MACHINE1 and MACHINE2 using parallel
- Read stackexchange questions about gnu-parallel: https://unix.stackexchange.com/questions/tagged/gnu-parallel?tab=votes&pagesize=50
- Install parallel in macOS:
brew install parallelcan conflict withbrew install moreutils
Intermediate[edit]
- Review different parallel options such as:
--keep-orderor-kwhich keep order in the output. Do not affect order of execution. - Update all your
gitrepositories in a directory in macOS using parallel:ls | parallel git -C {} fetch
Related terms[edit]
- Parallels
forpsshparallel --citationyarn workspaces foreach --paralell- PostgreSQL parallel query
- Android parallel apps
- Parallel computing
- ansible -B, --background
- parallel --sshlogin
- pigz, gipz parallel implementation
See also[edit]
parallel,for,xargs,parallel --citation, sshloginxargs,parallel,paste,mapmoreutilsstress, parallel, ab- CPU, GPU, NPU, TPU, DPU, Groq, Proliant, thread (
Pthreads), processor, CPU socket, core, ARM , CPU Virtualization, Intel, AMD,nm,lscpu, AVX-512, Passthrough, CPU intensive, Graviton processor, Branch predictor, vCPU, SSE, Power
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Source: https://en.wikiversity.org/wiki/Linux/Basic_commands/parallel
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