我有一个文件,它从 ldapsearch 命令获取详细信息并创建文件,如下所示
# lschuler, people, pl.s2-eu.XXXXXXXXX.local
dn: uid=lschuler,ou=people,dc=pl,dc=s2-eu,dc=XXXXXXXXX,dc=local
objectClass: posixAccount
objectClass: inetOrgPerson
objectClass: organizationalPerson
objectClass: person
loginShell: /bin/bash
homeDirectory: /home/lschuler
gidNumber: 10000
uid: lschuler
cn: Leonie Schuessler
uidNumber: 20056
mail: [email protected]
sn: Schuessler
givenName: Leonie
# cadelie, people, pl.s2-eu.XXXXXXXXX.local
dn: uid=cadelie,ou=people,dc=pl,dc=s2-eu,dc=XXXXXXXXX,dc=local
objectClass: posixAccount
objectClass: inetOrgPerson
objectClass: organizationalPerson
objectClass: person
loginShell: /bin/bash
homeDirectory: /home/cadelie
gidNumber: 10000
uid: cadelie
cn:: Q2hsb8OpIEFkw6lsaWU=
uidNumber: 20057
mail: [email protected]
sn:: QWTDqWxpZQ==
givenName:: Q2hsb8Op
如果你看到SN::&给定的名称::有时有 base64 值,我想用命令解码它,但我无法做到
cat file.text | sed -e "s/.*sn:: //g;s/;.*//" |base64 -d && cat file.text | sed -e "s/.*givenName:: //g;s/;.*//" |base64 -d
我如何只能解码 sn:: 和给定名称:: 具有 base64 值并再次保存到同一文件。
请帮忙,武士
答案1
使用任何 awk:
$ cat tst.awk
/^(sn|givenName):: */ {
tag = val = $0
sub(/ .*/,"",tag)
sub(/^[^ ]+ */,"",val)
cmd = "printf \047%s\047 \047" val "\047 | base64 -d"
if ( (cmd | getline line) > 0 ) {
$0 = tag " " line
}
close(cmd)
}
{ print }
$ awk -f tst.awk file
# lschuler, people, pl.s2-eu.XXXXXXXXX.local
dn: uid=lschuler,ou=people,dc=pl,dc=s2-eu,dc=XXXXXXXXX,dc=local
objectClass: posixAccount
objectClass: inetOrgPerson
objectClass: organizationalPerson
objectClass: person
loginShell: /bin/bash
homeDirectory: /home/lschuler
gidNumber: 10000
uid: lschuler
cn: Leonie Schuessler
uidNumber: 20056
mail: [email protected]
sn: Schuessler
givenName: Leonie
# cadelie, people, pl.s2-eu.XXXXXXXXX.local
dn: uid=cadelie,ou=people,dc=pl,dc=s2-eu,dc=XXXXXXXXX,dc=local
objectClass: posixAccount
objectClass: inetOrgPerson
objectClass: organizationalPerson
objectClass: person
loginShell: /bin/bash
homeDirectory: /home/cadelie
gidNumber: 10000
uid: cadelie
cn:: Q2hsb8OpIEFkw6lsaWU=
uidNumber: 20057
mail: [email protected]
sn:: Adélie
givenName:: Chloé
它会为每次调用分离出一个子 shell,base64
因此该部分会很慢。
答案2
使用 perl 及其MIME::Base64模块中,以下一个衬垫对字段名称以两个冒号 (::) 结尾的每一行的数据进行 base64 解码。其他线路保持不变。
MIME::Base64
是一个核心 Perl 模块,自 v5.8(2002 年 7 月)起就包含在 Perl 中。
$ perl -MMIME::Base64 -pe 's/^((?:[^:]*)):: *(.*)/"$1: " . decode_base64($2)/e' file.txt
# lschuler, people, pl.s2-eu.XXXXXXXXX.local
dn: uid=lschuler,ou=people,dc=pl,dc=s2-eu,dc=XXXXXXXXX,dc=local
objectClass: posixAccount
objectClass: inetOrgPerson
objectClass: organizationalPerson
objectClass: person
loginShell: /bin/bash
homeDirectory: /home/lschuler
gidNumber: 10000
uid: lschuler
cn: Leonie Schuessler
uidNumber: 20056
mail: [email protected]
sn: Schuessler
givenName: Leonie
# cadelie, people, pl.s2-eu.XXXXXXXXX.local
dn: uid=cadelie,ou=people,dc=pl,dc=s2-eu,dc=XXXXXXXXX,dc=local
objectClass: posixAccount
objectClass: inetOrgPerson
objectClass: organizationalPerson
objectClass: person
loginShell: /bin/bash
homeDirectory: /home/cadelie
gidNumber: 10000
uid: cadelie
cn: Chloé Adélie
uidNumber: 20057
mail: [email protected]
sn: Adélie
givenName: Chloé
这会打印到标准输出。要使其修改输入文件,您可以使用 perl 的-i
就地编辑选项。