Cheat Sheet

  • 指定分隔符

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    awk -F "," '{print Awk}' ./filename.txt

  • 多个 field 输出，使用 ","

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    # 输入
#figure-extract                              cuda12.2-1-move-app-v1               a74c57ab7c82   3 days ago      7.16GB
#table-extract                               cuda12.2-1-move-app                  358de070777c   3 days ago      16.4GB
awk '{print $1,":",$2}'
# 输出
# figure-extract:cuda12.2-1-move-app-v1
# table-extract:cuda12.2-1-move-app

分隔符： -F ","

设置变量： -v

  • -v FS="\t"

与 unexpand 连用

  • unexpand 把空格转化成 tab(\t)字符

if 语句

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$ awk '{
  if ([]:  >=35 &&  >= 35 &&  >= 35)
      print ,"=>","Pass";
  else
      print ,"=>","Fail";
  }' student-marks
Jones 2143 78 84 77 => Pass
Gondrol 2321 56 58 45 => Pass
RinRao 2122 38 37 => Fail
Edwin 2537 87 97 95 => Pass
Dayan 2415 30 47 => Fail