如何使用shell腳本洗掉檔案中不需要的字符

我有一個看起來像這樣的檔案（file.txt）

AYOsVS7Wknsgv2StRsEK JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS7yknsgv2StRsEL JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS8aknsgv2StRsEM JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS8hknsgv2StRsEN JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS8mknsgv2StRsEO JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
RondomText JBC-ChangeService-Test N/A Coverage(89.1%)     JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]

我必須洗掉最后一列中不需要的 [JamesPeter]字符JamesPeter

然后預期的輸出

AYOsVS7Wknsgv2StRsEK JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS7yknsgv2StRsEL JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS8aknsgv2StRsEM JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS8hknsgv2StRsEN JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS8mknsgv2StRsEO JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
RondomText JBC-ChangeService-Test N/A Coverage(89.1%)     JBC 97 2022-10-11-10:23 [email protected] development JamesPeter

這是我嘗試過的

sed 's/[//; s/]//' file.txt

然后輸出我得到

AYOsVS7Wknsgv2StRsEK JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS7yknsgv2StRsEL JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS8aknsgv2StRsEM JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS8hknsgv2StRsEN JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS8mknsgv2StRsEO JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
RondomTextJBC-ChangeService-Test N/A Coverage(89.1%)     JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]

有人可以幫我解決這個問題嗎？提前致謝！

注意：我不允許使用 jq 或通用腳本語言（JavaScript、Python 等）。

uj5u.com熱心網友回復：

如果[并且]確實只出現在最后一列，那么您可以洗掉所有內容[，并且]據我所知，使用tr它不屬于通用腳本語言，讓file.txt內容成為

AYOsVS7Wknsgv2StRsEK JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS7yknsgv2StRsEL JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS8aknsgv2StRsEM JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS8hknsgv2StRsEN JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
AYOsVS8mknsgv2StRsEO JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]
RondomText JBC-ChangeService-Test N/A Coverage(89.1%)     JBC 97 2022-10-11-10:23 [email protected] development [JamesPeter]

然后

tr -d '[]' < file.txt

給出輸出

AYOsVS7Wknsgv2StRsEK JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS7yknsgv2StRsEL JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS8aknsgv2StRsEM JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS8hknsgv2StRsEN JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS8mknsgv2StRsEO JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
RondomText JBC-ChangeService-Test N/A Coverage(89.1%)     JBC 97 2022-10-11-10:23 [email protected] development JamesPeter

說明：我file.txt輸入 的標準輸入tr，我指示洗掉以下字符：[, ].

但是，如果[and]可能出現在除 last 以外的列中，那么您可以AWK按照以下方式使用 GNU，讓file.txtcontent 成為

[HelloWorld] 1 [Name]
Hello        2 [Name]
World        3 [Name]

然后

awk 'BEGIN{FS="[[:space:]]"}{gsub(/\[|\]/,"",$NF);print}' file.txt

給出輸出

[HelloWorld] 1 Name
Hello        2 Name
World        3 Name

說明：我通知 GNUAWK欄位分隔符 ( FS) 是單個空白字符，然后對于每一行我全域（因此gsub）替換文字[或 ( |)使用空字串的文字，即在最后一個欄位 ( )]中洗掉它$NF

（在 gawk 4.2.1 中測驗）

uj5u.com熱心網友回復：

這sed應該可以替換輸入中的任何位置[：]

sed -E 's/[][]//g' file

AYOsVS7Wknsgv2StRsEK JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS7yknsgv2StRsEL JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS8aknsgv2StRsEM JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS8hknsgv2StRsEN JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
AYOsVS8mknsgv2StRsEO JBC-ChangeService-Test    CODE_SMELL JBC 97 2022-10-11-10:23 [email protected] development JamesPeter
RondomText JBC-ChangeService-Test N/A Coverage(89.1%)     JBC 97 2022-10-11-10:23 [email protected] development JamesPeter

但是，如果您只想從最后一個欄位中洗掉[并使用：]

sed -E 's/\[([^]]*)\]$/\1/' file

uj5u.com熱心網友回復：

為什么不使用tr這個：

Prompt> cat file.txt | tr -d "[" | tr -d "]" >result.txt

-d開關洗掉提到的字符。

標籤：linux壳awksedtr

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