Question

现在我有2个文件：

File1中：

File2：

   aaa bb dd cc 120111
    ccc ss ll ee 120111
    sss cd ff ee 120111
    bbb ek lw ss 120112
    bbb kk ll ww 120112
    wwo oo kk ww 120112
    ww kkk jw ll 120113
    www kk sl if 120114
    wwk kl so as 120114
    wei kk lw pz 120115

我希望得到这样的输出：

   aaa bb dd cc 120111 A
    ccc ss ll ee 120111 A
    sss cd ff ee 120111 A
    bbb ek lw ss 120112 B
    bbb kk ll ww 120112 B
    wwo oo kk ww 120112 B
    ww kkk jw ll 120113 C
    www kk sl if 120114 D
    wwk kl so as 120114 D
    wei kk lw pz 120115 E

我尝试使用循环和grep，但我坚持添加＆＃39; A B C D E＆＃39;在行尾。这是我的代码，

while read line1
do
Date=${line1:0:6}
grep $Date File2
done < File1

如果有人知道如何解决这个问题，请帮助我。谢谢！

Answer 1

这是完成工作的awk：

awk  'FNR==NR {a[$1]=$2;next} {print $0,a[$5]}' file1 file2
   aaa bb dd cc 120111 A
    ccc ss ll ee 120111 A
    sss cd ff ee 120111 A
    bbb ek lw ss 120112 B
    bbb kk ll ww 120112 B
    wwo oo kk ww 120112 B
    ww kkk jw ll 120113 C
    www kk sl if 120114 D
    wwk kl so as 120114 D
    wei kk lw pz 120115 E

它将第一个文件file1存储在数组a中，使用第一个字段作为索引，第二个作为数据。
然后它打印出来自file2的数据并使用第五个字段从数组a

中获取数据

Answer 2

我怀疑你的问题是一个路径问题，因为grep应该可以正常工作：

#!/bin/bash

## validate both input files are readable
[ -r "$1" -a -r "$2" ] || {
    printf "\n error: invalid input. Usage:  %s key_file srch_file\n\n" "${0//*\//}"
}

## read each line in the first (key_file)
while read -r key ltr || [ -n "$ltr" ]; do

    ## output the grep command being used followed by the results
    printf "\n cmd: grep %s %s\n\n" "$key" "$2"
    grep "$key" "$2"

done <"$1"

exit 0

<强>输出：

$ bash grepvalues.sh dat/grepkey.txt dat/grepfile.txt

 cmd: grep 120111 dat/grepfile.txt

aaa bb dd cc 120111
ccc ss ll ee 120111
sss cd ff ee 120111

 cmd: grep 120112 dat/grepfile.txt

bbb ek lw ss 120112
bbb kk ll ww 120112
wwo oo kk ww 120112

 cmd: grep 120113 dat/grepfile.txt

ww kkk jw ll 120113

 cmd: grep 120114 dat/grepfile.txt

www kk sl if 120114
wwk kl so as 120114

 cmd: grep 120115 dat/grepfile.txt

wei kk lw pz 120115

当然，在printf命令之前评论grep会产生以下结果：

aaa bb dd cc 120111
ccc ss ll ee 120111
sss cd ff ee 120111
bbb ek lw ss 120112
bbb kk ll ww 120112
wwo oo kk ww 120112
ww kkk jw ll 120113
www kk sl if 120114
wwk kl so as 120114
wei kk lw pz 120115

在grep输出结束时添加字母

#!/bin/bash

## validate both input files are readable
[ -r "$1" -a -r "$2" ] || {
    printf "\n error: invalid input. Usage:  %s key_file srch_file\n\n" "${0//*\//}"
}

## read each line in the first (key_file)
while read -r key ltr || [ -n "$ltr" ]; do

    ## output the grep command being used followed by the results
    #printf "\n cmd: grep %s %s\n\n" "$key" "$2"
    while read -r ln; do
        printf " %s  %s\n" "$ln" "$ltr" 
    done <<<"$(grep "$key" "$2")"

done <"$1"

exit 0

<强>输出：

$ bash grepvalues.sh dat/grepkey.txt dat/grepfile.txt
 aaa bb dd cc 120111  A
 ccc ss ll ee 120111  A
 sss cd ff ee 120111  A
 bbb ek lw ss 120112  B
 bbb kk ll ww 120112  B
 wwo oo kk ww 120112  B
 ww kkk jw ll 120113  C
 www kk sl if 120114  D
 wwk kl so as 120114  D
 wei kk lw pz 120115  E

如何将整行添加到grep结果中？

2 个答案: