Shell腳本輸出格式化回顯

我有一個 shell 腳本的輸出，如下所示

##########################################################
Creation date: 15-03-2022 / 15:03
performed by: user
Environment: E_MTE_04
Reference - Repository: TEST
-BSL Number of documents: XXX
-Syr Number of documents: XXX
-DEB Number of documents: XXX
Candidate - Repository: TEST
-BSL Number of documents: XXX
-Syr Number of documents: XXX
-DEB Number of documents: XXX

我嘗試在腳本內以相等的間距格式化它，但輸出仍然沒有均勻的間距。我想列印如下所示的輸出。

##########################################################
Creation date:                     15-03-2022 / 15:03
performed by:                      user
Environment:                       E_MTE_04
Reference - Repository:            TEST
-BSL Number of documents:          XXX
-Syr Number of documents:          XXX
-DEB Number of documents:          XXX
Candidate - Repository:            TEST
-BSL Number of documents:          XXX
-Syr Number of documents:          XXX
-DEB Number of documents:          XXX

是否有任何可用的命令來完成此操作。我使用 bash。這是代碼。

echo "##########################################################" >> $log
echo Creation date: $today" / $time">> $log
echo performed by: $USER >> $log
echo Environment: $firstEnv >> $log
echo Reference - Repository: $firstParamomsID >> $log
echo -BSL Number of documents: XXX >> $log
echo -Syr Number of documents: XXX >> $log
echo -DEB Number of documents: XXX >> $log
echo Candidate - Repository: $secondParamomsID >> $log
echo -BSL Number of documents: XXX >> $log
echo -Syr Number of documents: XXX >> $log
echo -DEB Number of documents: XXX >> $log

謝謝

uj5u.com熱心網友回復：

在標簽和變數之間添加空格

改變：

echo Creation date: $today" / $time">> $log

到：

echo Creation date:                     $today" / $time">> $log

uj5u.com熱心網友回復：

使用制表符分隔列，然后使用標準expand實用程式使用空格擴展制表符。例如，

printf '%s\t%s\n' "Creation date:" "15-03-2022 / 15:03" \
                  "performed by: " "user" \
                  "Environment: " "E_MTE_04" |
  expand -t 20

生產

Creation date:      15-03-2022 / 15:03
performed by:       user
Environment:        E_MTE_04

您唯一需要做的就是確保選項指定的制表位-t足夠大以容納每列中最長的字串。

uj5u.com熱心網友回復：

假設您可以更改腳本，一個想法是將echo呼叫替換為printf，例如：

設定：

today='15-03-2022'
time='15:03'
USER=user
firstEnv='E_MTE_04'
firstParamomsID='TEST'
secondaryParamomsID='TEST'

我們的printf格式字串：

fmt="%-30s %s\n"

在哪里：

• %-30%s- 在寬度為 30 的左對齊欄位中列印第一個引數
• %s\n- 列印第二個引數，后跟換行符

替換當前echo代碼如下所示：

echo "##########################################################"
printf "${fmt}" "Creation date:" "${today} / ${time}"
printf "${fmt}" "performed by:" "${USER}"
printf "${fmt}" "Environment:" "${firstEnv}"
printf "${fmt}" "Reference - Repository:" "${firstParamomsID}"
printf "${fmt}" "-BSL Number of documents:" "XXX"
printf "${fmt}" "-5yr Number of documents:" "XXX"
printf "${fmt}" "-DEB Number of documents:" "XXX"
printf "${fmt}" "Candidate - Repository:" "${secondaryParamomsID}"
printf "${fmt}" "-BSL Number of documents:" "XXX"
printf "${fmt}" "-5yr Number of documents:" "XXX"
printf "${fmt}" "-DEB Number of documents:" "XXX"

如果所有printf呼叫都在連續的行上（即行之間沒有其他代碼），您可以使用單個printf來處理所有字串；printf將重新申請$fmt，直到用盡輸入字串串列，例如：

echo "##########################################################"
printf "${fmt}" "Creation date:"            "${today} / ${time}" \
                "performed by:"             "${USER}" \
                "Environment:"              "${firstEnv}" \
                "Reference - Repository:"   "${firstParamomsID}" \
                "-BSL Number of documents:" "XXX" \
                "-5yr Number of documents:" "XXX" \
                "-DEB Number of documents:" "XXX" \
                "Candidate - Repository:"   "${secondaryParamomsID}" \
                "-BSL Number of documents:" "XXX" \
                "-5yr Number of documents:" "XXX" \
                "-DEB Number of documents:" "XXX"

注意：額外的間距（行首，args 之間）是可選的；我添加了額外的空格以提高可讀性

這兩個生成：

##########################################################
Creation date:                 15-03-2022 / 15:03
performed by:                  user
Environment:                   E_MTE_04
Reference - Repository:        TEST
-BSL Number of documents:      XXX
-5yr Number of documents:      XXX
-DEB Number of documents:      XXX
Candidate - Repository:        TEST
-BSL Number of documents:      XXX
-5yr Number of documents:      XXX
-DEB Number of documents:      XXX

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