Início / unix / Perguntas / 697451
Accepted
ranjit abraham
Asked: 2022-03-31 22:45:44 +0800 CST

Sed substitua por qualquer palavra aleatória na string

  • 772

Olá, estou tentando fazer uma substituição em um arquivo onde uma string é seguida por qualquer string aleatória usando sed. Meu arquivo original se parece com o abaixo.

access = read : [ * ], write : [ admin, sc_admin ]
access = read : [ * ], write : [ admin, myuser ]
access = read : [ * ], write : [ admin ]
access = read : [ * ], write : [ admin, randomuser ]
access = read : [ * ], write : [ admin, randomuser, somedude ]
access = read : [ * ], write : [ admin, justarandomuser, somedude, anotherdude ]
access = read : [ * ], write : [ admin, another_random_user ]

Eu preciso adicionar uma string chamada sc_admin após meu usuário aleatório que segue admin para que fique assim

access = read : [ * ], write : [ admin, sc_admin ]
access = read : [ * ], write : [ admin, myuser, sc_admin ]
access = read : [ * ], write : [ admin ]
access = read : [ * ], write : [ admin, randomuser, sc_admin ]
access = read : [ * ], write : [ admin, randomuser, somedude, sc_admin ]
access = read : [ * ], write : [ admin, justarandomuser, somedude, anotherdude, sc_admin ]
access = read : [ * ], write : [ admin, another_random_user, sc_admin ]

Estou tentando executar o seguinte comando sed, mas não está fazendo nada.

sed -r "s/\[\ admin\,\ \w+\ \]/\[\ admin\,\ \w+\,\ sc\_admin\ \]/g" local.meta

O que estou perdendo aqui?

awk sed

3 respostas

  1. Best Answer

    Pule as linhas que já contêm sc_admin, e substitua apenas nas linhas que contêm admin,:

    sed -e '/\bsc_admin\b/b' -e '/admin,/ s/ *] *$/, sc_admin ]/' infile

    Resultado:

    access = read : [ * ], write : [ admin, sc_admin ]
access = read : [ * ], write : [ admin, myuser, sc_admin ]
access = read : [ * ], write : [ admin ]
access = read : [ * ], write : [ admin, randomuser, sc_admin ]
access = read : [ * ], write : [ admin, randomuser, somedude, sc_admin ]
access = read : [ * ], write : [ admin, justarandomuser, somedude, anotherdude, sc_admin ]
access = read : [ * ], write : [ admin, another_random_user, sc_admin ]
    • 1

  2. Usandosed

    $ sed '/sc_admin\>/!s/\[ admin,.*[a-z]/&, sc_admin/' input_file
access = read : [ * ], write : [ admin, sc_admin ]
access = read : [ * ], write : [ admin, myuser, sc_admin ]
access = read : [ * ], write : [ admin ]
access = read : [ * ], write : [ admin, randomuser, sc_admin ]
access = read : [ * ], write : [ admin, randomuser, somedude, sc_admin ]
access = read : [ * ], write : [ admin, justarandomuser, somedude, anotherdude, sc_admin ]
access = read : [ * ], write : [ admin, another_random_user, sc_admin ]
    • 1 
  3. awk '!/sc_admin/ && /admin,/{gsub(/\]$/,",scadmin ]",$0)}1' filename

    resultado

    access = read : [ * ], write : [ admin, sc_admin ]
access = read : [ * ], write : [ admin, myuser ,scadmin ]
access = read : [ * ], write : [ admin ]
access = read : [ * ], write : [ admin, randomuser ,scadmin ]
access = read : [ * ], write : [ admin, randomuser, somedude ,scadmin ]
access = read : [ * ], write : [ admin, justarandomuser, somedude, anotherdude ,scadmin ]
access = read : [ * ], write : [ admin, another_random_user ,scadmin ]
    • 0

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