1#!/usr/bin/env python23'''4Read commands from stdin and process it line by line.56@Author:7@Date: 2013 - 07 - 278@Version: 1.0910@Ref.:11http://code.activestate.com/recipes/577376-simple-way-to-execute-multiple
A shell allows execution ofGNUcommands, both synchronously and asynchronously. The shell waits for synchronous commands to complete before accepting more input; asynchronous commands continue to execute in parallel with the shell while it reads and executes additional commands. Theredirectionconstructs permi...
hdfs_checksum*.sh - walks an HDFS directory tree and outputs HDFS native checksums (faster) or portable externally comparable CRC32, in serial or in parallel to save time hdfs_find_replication_factor_1.sh / hdfs_set_replication_factor_3.sh - finds HDFS files with replication factor 1 / sets...
in $(/usr/bin/find $DATADIR -type f -name 'lshw-*-dump.json'); do /usr/bin/jq '.["product","vendor", "configuration"]' $lshw done If everything goes well, then you collect your files in parallel because you don’t have more than ten systems. You can afford to ssh to all ...
如果安装了GNU Parallel,可以执行以下操作: 1 2 3 # If doCalculations is a function export-fdoCalculations seq09|parallel doCalculations{} GNU Parallel将为您提供退出代码: 0-所有作业运行无错误。 1-253-一些作业失败。退出状态提供失败作业的数量。
Finally, the Bash shell allows executing several processes in parallel, and their communication is managed by the operating system. Contribution. We prose to compile a Datalog program automatically into Bash commands. Our method optimizes the Datalog program with relational algebra 568 T. Rebele et ...
At this point, you should be comfortable with using the Bashxargscommand. Experiment with different ways of usingxargsto find the method that works best for you! Now, why not tryrunning programs in parallel using xargs?
A shell allows execution of GNU commands, both synchronously and asynchronously. The shell waits for synchronous commands to complete before accepting more input; asynchronous commands continue to execute in parallel with the shell while it reads and executes additional commands. Theredirectionconstructs ...
hdfs_checksum*.sh - walks an HDFS directory tree and outputs HDFS native checksums (faster) or portable externally comparable CRC32, in serial or in parallel to save time hdfs_find_replication_factor_1.sh / hdfs_set_replication_factor_3.sh - finds HDFS files with replication factor 1 / sets...
InLinux,oneofthemostcommonlyusedandmostpowerfultoolsistheBashshell.Withitscollectionofengagingrecipes,BashCookbooktakesyouthroughaseriesofexercisesdesignedtoteachyouhowtoeffectivelyusetheBashshellinordertocreateandexecuteyourownscripts.ThebookstartsbyintroducingyoutothebasicsofusingtheBashshell,alsoteachingyouthefundam...