linux - 压缩一个月前的文件

Question

我编写了一个脚本，用于在文件数量超过限制时将一组文件压缩到一个 zip 文件中。

    limit=1000                        #limit the number of files

files=( /mnt/md0/capture/dcn/*.pcap)     #file format to be zipped  

if((${#files[0]}>limit )); then   #if number of files above limit
zip -j /mnt/md0/capture/dcn/capture_zip-$(date "+%b_%d_%Y_%H_%M_%S").zip /mnt/md0/capture/dcn/*.pcap 

fi

我需要修改它，以便脚本检查上个月的文件数量而不是整个文件集。我如何实现它

Answer 1

也许是这个脚本。

#!/bin/bash

[ -n "$BASH_VERSION" ] || {
    echo "You need Bash to run this script."
    exit 1
}

shopt -s extglob || {
    echo "Unable to enable extglob option."
    exit 1
}

LIMIT=1000
FILES=(/mnt/md0/capture/dcn/*.pcap)
ONE_MONTH_BEFORE=0
ONE_MONTH_OLD_FILES=()

read ONE_MONTH_BEFORE < <(date -d 'TODAY - 1 month' '+%s') && [[ $ONE_MONTH_BEFORE == +([[:digit:]]) && ONE_MONTH_BEFORE -gt 0 ]] || {
    echo "Unable to get timestamp one month before current day."
    exit 1
}

for F in "${FILES[@]}"; do
    read TIMESTAMP < <(date -r "$F" '+%s') && [[ $TIMESTAMP == +([[:digit:]]) && TIMESTAMP -le ONE_MONTH_BEFORE ]] && ONE_MONTH_OLD_FILES+=("$F")
done

if [[ ${#ONE_MONTH_OLD_FILES[@]} -gt LIMIT ]]; then
    # echo "Zipping ${FILES[*]}."  ## Just an example message you can create.
    zip -j "/mnt/md0/capture/dcn/capture_zip-$(date '+%b_%d_%Y_%H_%M_%S').zip" "${ONE_MONTH_OLD_FILES[@]}"
fi

确保以 unix 文件格式保存并运行 bash script.sh。

您还可以修改脚本以通过参数而不是通过以下方式获取文件:

FILES=("$@")