56 lines
1.6 KiB
Bash
56 lines
1.6 KiB
Bash
#!/bin/bash
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## gitlab_rpm 2016-05-16
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## http://www.aqzt.com
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##email: ppabc@qq.com
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##robert yu
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##centos 6和centos 7
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##查文件从32994到34871行内容
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sed -n '32994,34871p' config_file
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##删除文件从32994到34871行内容
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sed '32994,34871 d' config_file
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##替换文件中performance_schema改为performance_schema_bak
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sed -i "s/performance_schema/performance_schema_bak/g" config_file
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##sed去除注释行
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sed -i -c -e '/^#/d' config_file
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##sed去除空行
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sed -i -c -e '/^$/d' config_file
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##sed去空行和注释行
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sed -i -c -e '/^$/d;/^#/' config_file
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##在某字符串下面一行增加一字符串
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sed -i '/fastcgi_path_info/a\fastcgi_param ENV_VAR_MY test;' test*.conf
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#假设处理的文本为test.file
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#在每行的头添加字符，比如"HEAD"，命令如下：
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sed 's/^/HEAD&/g' test.file
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#在每行的行尾添加字符，比如“TAIL”，命令如下：
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sed 's/$/&TAIL/g' test.file
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##替换某些后缀文件中的字符
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sed -i "s/text_to_replace/replacement/g" `find . -type f -name <filename>`
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sed -i "s/10.0.0.75/10.0.0.76/g" `find . -type f -name "*.properties"`
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sed -i "s/10.0.0.18/10.0.0.17/g" `find . -type f -name "*.properties"`
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sed -i "s/10.0.0.16/10.0.0.17/g" `find . -type f -name "*.php"`
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sed -i "s/d12/111222/g" `find . -type f -name "*.properties"`
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#sed删除文件倒数10行
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#把文件倒序
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sed -i '1!G;$!h;$!d' filename
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#删除10行
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sed -i '1,10d' filename
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#把文件倒序回来
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sed -i '1!G;$!h;$!d' filename
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nl file | tail -n 10 | awk 'NR == 1 '{print $1}'
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awk 'BEGIN{CMD="wc -l file";CMD|getline i}NR<=(i-10)' file
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sed -n ':a;1,10!{P;N;D;};N;ba' file
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