标签归档:Bash

linux grep 过滤多个单词

有时会需要使用 grep 做多关键词匹配,这里给出集中方法,简单记录:

grep 'word1\|word2\|word3' /path/to/file
### Search all text files ###
$ grep 'word*' *.txt
### Search all python files for 'wordA' or 'wordB' ###
$ grep 'wordA*'\''wordB' *.py
$ grep -E 'word1|word2' *.doc
$ grep -e string1 -e string2 *.pl
$ grep -E "word1|word2" *.c
### Show all the lines that do not match given pattern/words/strings ###
$ grep -v 'bar\|foo' /dir1/dir2/file1
$ grep -E -v 'pattern1|pattern2' /path/to/file

参考文献

自动递归下载依赖 deb 包 bash 脚本

说明

  • 脚本自动递归下载给定包列表deb包及其依赖包,深度3层;
  • 若指定参数则下载给定的包及其依赖包(目前仅支持指定1个包,不支持多包);
  • 若无参数则默认下载列表中给出的包机器依赖包;
  • 下载到当前目录;
  • 请提前配置好源。
#!/bin/bash

logfile=./auto_deps_log
# 需要获取其所依赖包的包
# 或者用$1,从命令行输入库名字
libs="gdisk logrotate pciutils systemd lvm2 udev logrotate libfuse2 iptables libnetfilter-conntrack3 libnfnetlink0 libusb-1.0-0 cpio xfsprogs libprotobuf-c1 liblmdb0"
ret=""

function getDepends()
{
   echo "fileName is" $1>>$logfile
   # use tr to del < >
   ret=`apt-cache depends $1|grep Depends |cut -d: -f2 |tr -d "<>"`
   echo $ret|tee  -a $logfile
}

if [ ! -n "$*" ] ;then
    echo "you have not input a word! get list: $libs"
else
    echo "the list you input is $*"
    libs=$1
fi
echo "get $libs"

# download libs dependen. deep in 3
i=0
while [ $i -lt 3 ] ;
do
    let i++
    echo $i
    # download libs
    newlist=" "
    for j in $libs
    do
        added="$(getDepends $j)"
        newlist="$newlist $added"
        apt-get download $added $j
    done

    libs=$newlist
done

参考文献