Entradas

Unix notes - sed command

https://www.tecmint.com/linux-sed-command-tips-tricks/ cat input.txt | sed "s|[[:print:]][[:space:]]date| $varchar_10|Ig" > output.txt varchar_10='varchar(10)' cat input.txt | sed "s/\bdate\b/$varchar_10/Ig" > output.txt

Replace patterns in a file

#!/bin/bash # February 3th, 2018 # Create a table copy in the same database # shPid=$$ inputSqlFile=statement.sql tmp=".sql.${shPid}" newInputSqlFile=statement_$shPid.sql pattern="alter table" target_tableName="tmp.people_copy" source_tableName="tb01.people" input_tablespace="ss" tablespaceName="in $input_tablespace" if [ -z "$input_tablespace" ] ; then     tablespaceName="" fi rTarget_table="target_table" rSourve_table="source_table" rTablespace="in_tablespace" echo "$inputSqlFile" sed "/$pattern/Q" $inputSqlFile > $tmp cp $inputSqlFile $tmp sed "s/${rTarget_table}/${target_tableName}/" $tmp > $newInputSqlFile sed "s/${rSourve_table}/${source_tableName}/" $newInputSqlFile > $tmp sed "s/${rTablespace}/${tablespaceName}/" $tmp > $newInputSqlFile cat $newInputSqlFile rm $tmp rm $newInputSqlFile ----------------------

Sed: Extract a file's part with sed command

#!/bin/bash # February 3rd, 2018 export Me=$(basename $0 .sh) export fecha_actual=`date "+%Y-%m-%d_%H%M%S"` inputFile=notas.txt pattern="find" # cut the file here echo "$inputFile" # q: show the file until the pattern, including it. # Q: show the file until the pattern, NOT including it. sed "/$pattern/Q" $inputFile

WordCount

Count word using Hadoop package com.ciocomit.count; import java.io.IOException; import java.util.StringTokenizer; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.Path; import org.apache.hadoop.io.IntWritable; import org.apache.hadoop.io.LongWritable; import org.apache.hadoop.io.Text; import org.apache.hadoop.mapreduce.Job; import org.apache.hadoop.mapreduce.Mapper; import org.apache.hadoop.mapreduce.Reducer; import org.apache.hadoop.mapreduce.lib.input.FileInputFormat; import org.apache.hadoop.mapreduce.lib.input.TextInputFormat; import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat; import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat; public class WordCount {     public static class Map extends Mapper {         public void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {             String line = value.toString();             StringTokenizer tokenizer = new StringTokenizer(line);            

AWK: n lines before, m lines after

awk 'c-->0; $0~s{if(b)for(c=b+1;c>1;c--)print r[(NR-c+1)%b];print;c=a}b{r[NR%b]=$0}' b=3 a=5 s="cadenita" short.txt

Git Merge

git granch                        # local branches git branch -r                   # remote branches git branch -a                   # local and remote branches git status                         # current branch status git checkout develop      # go to "develop" branch git checkout hotfix/tk_01_inv     # go to "hotfix/tk_01_inv" branch git pull    # download the remote changes into current branch git add .    # save all changes git commit -m 'some comment'    # commit into local branch git push      # public my local changes into remote git repository git merge : "develop" branch gets changes from "hotfix/tk_01_inv" branch git branch -a     # local and remote branches git status git checkout hotfix/tk_01_inv   # branch with new changes git pull gi push git checkout develop git pull git status git merge --no-ff hotfix/tk_01_inv git status git push