Unix - 在 grep 結果行之間添加字符串

Question

任何人都知道一種方法（在 RHEL7 和 AIX5 上工作）來制作在 /bin/bash 或 /bin/ksh 上運行的腳本，以使用 grep（或其他函數）在文本文件中搜索 1 個或多個字符串，結果被放入一個變量中，但在該變量中在每次出現的末尾放置一個字符串“\\\\n”？

例如：

文本文件1.txt

[root@server ~]$ cat TextFile1.txt
aby ORA-3120: unable to xx
sxyy  unable to aa
sxyy ORA-3120: unable to aa
ytxy  unable to bb
y41y  unable to dd
yanby  unable to ff
ytxy ORA-3120: unable to bb
y41y ORA-3120: unable to dd
y124gby  unable to gg
yanby ORA-3120: unable to ff
aby  unable to xx
y124gby ORA-3120: unable to gg

簡單的 Grep

[root@server ~]$ cat TextFile1.txt | grep "ORA-"
aby ORA-3120: unable to xx
sxyy ORA-3120: unable to aa
ytxy ORA-3120: unable to bb
y41y ORA-3120: unable to dd
yanby ORA-3120: unable to ff
y124gby ORA-3120: unable to gg

將結果放入變量中

[root@server ~]$ aa=$(cat TextFile1.txt | grep "ORA-")

[root@server ~]$ echo $aa
aby ORA-3120: unable to xx sxyy ORA-3120: unable to aa ytxy ORA-3120: unable to bb y41y ORA-3120: unable to dd yanby ORA-3120: unable to ff y124gby ORA-3120: unable to gg

想要的結果：

[root@server ~]$ echo $aa

\\\\n aby ORA-3120：無法 xx \\\\n sxyy ORA-3120：無法 aa \\\\n ytxy ORA-3120：無法 bb \\\\n y41y ORA-3120：無法 dd \\\\n yanby ORA- 3120: 無法 ff \\\\n y124gby ORA-3120: 無法 gg \\\\n

預先感謝您的幫助和提示

Answer 1

一種快速解決方案是使用 awk：

aa=$(cat TextFile1.txt | grep "ORA-"| awk '{print $0 "\\n"}')

Answer 2

有很多方法可以做到這一點。 這里有兩個：

管道grep的輸出到sed ：

aa=$(echo " \\\n"; grep "ORA-" TextFile1.txt | sed 's/\(.*\)/\1 \\\\n/')

輸出：

$ aa=$(echo " \\\n"; grep "ORA-" TextFile1.txt | sed 's/\(.*\)/\1 \\\\n/')
$ echo $aa
\\n aby ORA-3120: unable to xx \\n sxyy ORA-3120: unable to aa \\n ytxy ORA-3120: unable to bb \\n y41y ORA-3120: unable to dd \\n yanby ORA-3120: unable to ff \\n y124gby ORA-3120: unable to gg \\n
$

管道grep的輸出到 awk：

aa=$(echo " \\\n"; grep "ORA-" TextFile1.txt | awk '{print $0 " \\\\n"}')

輸出：

$ aa=$(echo " \\\n"; grep "ORA-" TextFile1.txt | awk '{print $0 " \\\\n"}')
$ echo $aa
\\n aby ORA-3120: unable to xx \\n sxyy ORA-3120: unable to aa \\n ytxy ORA-3120: unable to bb \\n y41y ORA-3120: unable to dd \\n yanby ORA-3120: unable to ff \\n y124gby ORA-3120: unable to gg \\n