bash - programas - scripts linux ejercicios resueltos

Ejecutar una cadena como un comando dentro de un script Bash

Question

Tengo un script Bash que construye una cadena para ejecutar como un comando

Guión:

#! /bin/bash

matchdir="/home/joao/robocup/runner_workdir/matches/testmatch/"

teamAComm="`pwd`/a.sh"
teamBComm="`pwd`/b.sh"
include="`pwd`/server_official.conf"
serverbin=''/usr/local/bin/rcssserver''

cd $matchdir
illcommando="$serverbin include=''$include'' server::team_l_start = ''${teamAComm}'' server::team_r_start = ''${teamBComm}'' CSVSaver::save=''true'' CSVSaver::filename = ''out.csv''"

echo "running: $illcommando"
# $illcommando > server-output.log 2> server-error.log
$illcommando

que no parece suministrar los argumentos correctamente al $serverbin .

Salida de script:

running: /usr/local/bin/rcssserver include=''/home/joao/robocup/runner_workdir/server_official.conf'' server::team_l_start = ''/home/joao/robocup/runner_workdir/a.sh'' server::team_r_start = ''/home/joao/robocup/runner_workdir/b.sh'' CSVSaver::save=''true'' CSVSaver::filename = ''out.csv''
rcssserver-14.0.1

Copyright (C) 1995, 1996, 1997, 1998, 1999 Electrotechnical Laboratory.
2000 - 2009 RoboCup Soccer Simulator Maintenance Group.


Usage: /usr/local/bin/rcssserver [[-[-]]namespace::option=value]
                                 [[-[-]][namespace::]help]
                                 [[-[-]]include=file]
Options:
    help
        display generic help

    include=file
        parse the specified configuration file.  Configuration files
        have the same format as the command line options. The
        configuration file specified will be parsed before all
        subsequent options.

    server::help
        display detailed help for the "server" module

    player::help
        display detailed help for the "player" module

    CSVSaver::help
        display detailed help for the "CSVSaver" module

CSVSaver Options:
    CSVSaver::save=<on|off|true|false|1|0|>
        If save is on/true, then the saver will attempt to save the
        results to the database.  Otherwise it will do nothing.

        current value: false

    CSVSaver::filename=''<STRING>''
        The file to save the results to.  If this file does not
        exist it will be created.  If the file does exist, the results
        will be appended to the end.

        current value: ''out.csv''

si solo pego el comando /usr/local/bin/rcssserver include=''/home/joao/robocup/runner_workdir/server_official.conf'' server::team_l_start = ''/home/joao/robocup/runner_workdir/a.sh'' server::team_r_start = ''/home/joao/robocup/runner_workdir/b.sh'' CSVSaver::save=''true'' CSVSaver::filename = ''out.csv'' (en la salida después de "runnning:") funciona bien.

Answer 1

./me arroja raise_dead ()

Estaba buscando algo como esto, pero también necesitaba reutilizar la misma cadena menos dos parámetros, así que terminé con algo como:

my_exe ()
{
    mysql -sN -e "select $1 from heat.stack where heat.stack.name=/"$2/";"
}

Esto es algo que utilizo para monitorear la creación de la pila de calor de la pila abierta. En este caso, espero dos condiciones, una acción ''CREAR'' y un estado ''COMPLETO'' en una pila llamada "Somestack"

Para obtener esas variables, puedo hacer algo como:

ACTION=$(my_exe action Somestack)
STATUS=$(my_exe status Somestack)
if [[ "$ACTION" == "CREATE" ]] && [[ "$STATUS" == "COMPLETE" ]]
...

Answer 2

Normalmente $(commandStr) comandos entre paréntesis $(commandStr) , si eso no ayuda, encuentro que el modo de depuración de bash es excelente, ejecuto el script como script bash -x script

Answer 3

Puede usar eval para ejecutar una cadena:

eval $illcommando

Answer 4

no coloque sus comandos en variables, solo ejecútelo

matchdir="/home/joao/robocup/runner_workdir/matches/testmatch/"
PWD=$(pwd)
teamAComm="$PWD/a.sh"
teamBComm="$PWD/b.sh"
include="$PWD/server_official.conf"
serverbin=''/usr/local/bin/rcssserver''    
cd $matchdir
$serverbin include=$include server::team_l_start = ${teamAComm} server::team_r_start=${teamBComm} CSVSaver::save=''true'' CSVSaver::filename = ''out.csv''

Answer 5

your_command_string="..."
output=$(eval "$your_command_string")
echo "$output"