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在 GNU/Linux 中复制文件，带有进度条和速率限制

tag-icon • tag-icon linux file-management cp cpio
在 GNU/Linux 中复制文件，带有进度条和速率限制

GNU/Linux 中是否有任何好的工具可以复制文件cp，但也显示进度并限制速度（并且不间断地更改限制）pv？

原型：

find source_directory | cpio -H newc -o | pv -s `du -bs source_directory/ | awk '{print $1}'` | (cd /destination/directory && cpio -di)

另外rsync -aP source_directory /destionation/directory/，但这会单独显示进度条，并且在启动后无法改变速率。

或者我应该为 pv/cpio 编写一个包装器？完毕。

答案1

编写脚本使用find、cpio和pv完成任务。可以限制速率。

http://vi-server.org/vi/bin/cppv

在这里镜像它：

#!/bin/bash 

set -e

if [ $# -lt 2 ]; then
    echo "cppv - copy files with progress bar and rate limiting ability"
    echo "Usage: cppv source_file[s] destination_file_or_directory"
    echo "No other non-positional command line arguments can be given"
    echo "Always recurses like find"
    echo "You can change copying speed limit on the fly with \"pv -R\" if you find out pv's PID"
    echo "Use FIND_OPTS, PV_OPTS, CPIO_O_OPTS, CPIO_I_OPTS to override arguments to the pipeline parts"
    echo "Examples:"
    echo "    cppv a b # Copy file a to b. Just calls \"pv a > b\""
    echo "    cppv a d/ # Copy file a to d/a. Calls \"find a | cpio -o | pv | (cd d && cpio -i)\""
    echo "    cppv *{01..26}*.mkv /mnt/usb/ # Copy all matching files to /mnt/usb/."
    echo "    cppv dir1 dir2 # duplicate dir1"
    echo "    PV_OPTS=\"-L 1M\" cppv . /tmp/ # Limit copying rate to 1M"
    echo "    cppv /home/vi/bin /tmp/ # Warning: Copy /home/vi/bin to /tmp/home/vi/bin"
    exit 1
fi;

true ${CPIO_O_OPTS:="-H newc -0o"}
true ${CPIO_I_OPTS:="-0diu --no-absolute-filenames"}
true ${FIND_OPTS:="-depth -print0"}

ARGS=( "$@" );

DEST="${ARGS[$#-1]}"
unset ARGS[$#-1];

if [[ ( "${1:0:1}" == "-"  && ! -e "$1" ) || ( "${DEST:0:1}" == "-" && ! -e "$DEST" )  ]]; then
    echo "There should not be any command line options. Only file names." >&2
    exit 1;
fi

DIRMODE=0

if [[ $# > 2 || "${DEST:${#DEST}-1:1}" == "/" || -d $DEST ]]; then
    DIRMODE=1
elif [[ -d "$1" && ! -d "$2" ]]; then
    DIRMODE=1
    mkdir "$DEST";
    DEST=`readlink -f "$DEST"`;
    cd "$1";
    ARGS=(".")
fi

if [ $DIRMODE == 0 ]; then
    pv "$1" > "$2" && exit 0;
fi;

if [ ! -d "$DEST" ]; then
    echo Not a directory: "$DEST" >&2
    exit 1
fi

if [ "${1:0:1}" == "/" ]; then
    echo "Warning: it will do a bit different thing than usual cp" >&2
    echo "    For example, copying $1 to $DEST$1, not to $DEST/`basename $1`" >&2
fi

SIZE=`du -sb "${ARGS[@]}" | perl -ne '/^(\d+)/ and $q+=$1; END{print $q}'`

find "${ARGS[@]}" $FIND_OPTS | cpio $CPIO_O_OPTS | pv -s $SIZE $PV_OPTS | (cd "$DEST" && cpio $CPIO_I_OPTS)

请某人测试一下。

答案2

我建议你看一下这个：http://bash.cyberciti.biz/guide/A_progress_bar_%28gauge_box%29#File_Copy_Progress_Bar_With_Dialog

看起来相当整洁！=)

答案3

尝试一下gcp。应该可以在 Ubuntu 上使用。

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