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Shell Scripting
Shell Scripting
Shell Scripting
Shell Scripting
Shell Scripting
Shell Scripting
Shell Scripting
Shell Scripting
Shell Scripting
Shell Scripting
Shell Scripting
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Shell Scripting

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Sexta parte da apresentação sobre Shell Scripting realizada na Bluesoft …

Sexta parte da apresentação sobre Shell Scripting realizada na Bluesoft

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  • tempo de execução: 16s versus 91m find procura subdirs
  • Diferença entre ' e “
  • Transcript

    • 1. Daniel Carneiro Shell Script Parte VI
    • 2. Exemplos simples
      • Contar arquivos
      ls | wc -l find | wc -l find -type f | wc -l
      • Manipular uma saída
      fortune | tee temp ; wc temp; rm -f temp temp =$( fortune ); echo $temp ; echo $temp | wc
      • Branch do git no prompt
      PS1 ="[ u@h:W $( git branch 2> /dev/null | grep -e '* ' | sed 's/^..(.*)/{1}/') ]$ "
    • 3. Para remover muitos arquivos (500000+): rm f* bash: /bin/rm: Lista de argumentos muito longa for i in f*; do rm $i; done find -name 'f*' -exec rm {} ; for i in $( find -name 'f*'); do rm $i; done
    • 4. Buscar um aplicativo e matá-lo ps aux (listar processos) USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.0 2792 1648 ? Ss 19:27 0:00 /sbin/init root 2 0.0 0.0 0 0 ? S 19:27 0:00 [kthreadd] root 3 0.0 0.0 0 0 ? S 19:27 0:01 [migration/0] root 4 0.0 0.0 0 0 ? S 19:27 0:00 [ksoftirqd/0] root 5 0.0 0.0 0 0 ? S 19:27 0:00 [watchdog/0] root 6 0.0 0.0 0 0 ? S 19:27 0:01 [migration/1] root 7 0.0 0.0 0 0 ? S 19:27 0:00 [ksoftirqd/1] root 8 0.0 0.0 0 0 ? S 19:27 0:00 [watchdog/1] root 9 0.0 0.0 0 0 ? S 19:27 0:00 [events/0] root 10 0.0 0.0 0 0 ? S 19:27 0:00 [events/1] . . . daniel 2762 35.4 2.4 73372 70772 pts/0 Ss 22:12 22:09 bash daniel 12969 0.0 0.0 2716 1040 pts/1 R+ 23:14 0:00 ps aux
    • 5. Buscar um aplicativo e matá-lo pids= $( ps aux| grep pts/1| grep -v grep| tr -s " "| cut -d " " -f 2 ) for i in $pids; do kill $i; done
    • 6. Install Script #!/bin/bash SID= ${1:-$ORACLE_SID} echo Creating instance $SID read -r -p "Are you sure? [y/N] " response response= ${response,,} # tolower if [[ $response =~ ^(yes|y)$ ]]; then echo creating... $SID else exit fi
    • 7. Install Script mkdir $SID cp pass.sql $SID cat init.ora| sed -e "s/ORACLE_SID/ $SID /g" > $SID /init.ora cat CreateDB.sql| sed -e "s/ORACLE_SID/ $SID /g" > $SID /CreateDB.sql cat CreateDBFiles.sql| sed -e "s/ORACLE_SID/ $SID /g" > $SID /CreateDBFiles.sql cat CreateDBCatalog.sql| sed -e "s/ORACLE_SID/ $SID /g" > $SID /CreateDBCatalog.sql cat postDBCreation.sql| sed -e "s/ORACLE_SID/ $SID /g" > $SID /postDBCreation.sql
    • 8. Start/Stop Script
    • 9. Start/Stop Script
    • 10. Start/Stop Script
    • 11. Obrigado

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