我正在尝试创建一系列带有大括号扩展的文件。我想创建fileA1具有所有可能组合的文件fileZ100（类似于touch file[A..Z][1..100]）。
如果我运行命令，touch $(printf "file%d " {1..100})输出正常：
file1 file15 file21 file28 file34 file40 file47 file53 file6 file66 file72 file79 file85 file91 file98
file10 file16 file22 file29 file35 file41 file48 file54 file60 file67 file73 file8 file86 file92 file99
file100 file17 file23 file3 file36 file42 file49 file55 file61 file68 file74 file80 file87 file93
file11 file18 file24 file30 file37 file43 file5 file56 file62 file69 file75 file81 file88 file94
file12 file19 file25 file31 file38 file44 file50 file57 file63 file7 file76 file82 file89 file95
file13 file2 file26 file32 file39 file45 file51 file58 file64 file70 file77 file83 file9 file96
file14 file20 file27 file33 file4 file46 file52 file59 file65 file71 file78 file84 file90 file97
如果我运行也是一样touch $(printf "file%c " {A..Z})：
fileA fileC fileE fileG fileI fileK fileM fileO fileQ fileS fileU fileW fileY
fileB fileD fileF fileH fileJ fileL fileN fileP fileR fileT fileV fileX fileZ
我试图将它们结合起来touch $(printf "file%c%d " {A..Z}{1..100})，但输出是：
[...]
-bash: printf: Y2: invalid number
-bash: printf: Y4: invalid number
-bash: printf: Y6: invalid number
-bash: printf: Y8: invalid number
-bash: printf: Y10: invalid number
-bash: printf: Y12: invalid number
-bash: printf: Y14: invalid number
-bash: printf: Y16: invalid number
-bash: printf: Y18: invalid number
-bash: printf: Y20: invalid number
-bash: printf: Y22: invalid number
-bash: printf: Y24: invalid number
-bash: printf: Y26: invalid number
-bash: printf: Y28: invalid number
-bash: printf: Y30: invalid number
-bash: printf: Y32: invalid number
-bash: printf: Y34: invalid number
-bash: printf: Y36: invalid number
-bash: printf: Y38: invalid number
-bash: printf: Y40: invalid number
-bash: printf: Y42: invalid number
-bash: printf: Y44: invalid number
-bash: printf: Y46: invalid number
-bash: printf: Y48: invalid number
-bash: printf: Y50: invalid number
-bash: printf: Y52: invalid number
-bash: printf: Y54: invalid number
-bash: printf: Y56: invalid number
-bash: printf: Y58: invalid number
-bash: printf: Y60: invalid number
-bash: printf: Y62: invalid number
-bash: printf: Y64: invalid number
-bash: printf: Y66: invalid number
-bash: printf: Y68: invalid number
-bash: printf: Y70: invalid number
-bash: printf: Y72: invalid number
-bash: printf: Y74: invalid number
-bash: printf: Y76: invalid number
-bash: printf: Y78: invalid number
-bash: printf: Y80: invalid number
-bash: printf: Y82: invalid number
-bash: printf: Y84: invalid number
-bash: printf: Y86: invalid number
-bash: printf: Y88: invalid number
-bash: printf: Y90: invalid number
-bash: printf: Y92: invalid number
-bash: printf: Y94: invalid number
-bash: printf: Y96: invalid number
-bash: printf: Y98: invalid number
-bash: printf: Y100: invalid number
-bash: printf: Z2: invalid number
-bash: printf: Z4: invalid number
-bash: printf: Z6: invalid number
-bash: printf: Z8: invalid number
-bash: printf: Z10: invalid number
-bash: printf: Z12: invalid number
-bash: printf: Z14: invalid number
-bash: printf: Z16: invalid number
-bash: printf: Z18: invalid number
-bash: printf: Z20: invalid number
-bash: printf: Z22: invalid number
-bash: printf: Z24: invalid number
-bash: printf: Z26: invalid number
-bash: printf: Z28: invalid number
-bash: printf: Z30: invalid number
-bash: printf: Z32: invalid number
-bash: printf: Z34: invalid number
-bash: printf: Z36: invalid number
-bash: printf: Z38: invalid number
-bash: printf: Z40: invalid number
-bash: printf: Z42: invalid number
-bash: printf: Z44: invalid number
-bash: printf: Z46: invalid number
-bash: printf: Z48: invalid number
-bash: printf: Z50: invalid number
-bash: printf: Z52: invalid number
-bash: printf: Z54: invalid number
-bash: printf: Z56: invalid number
-bash: printf: Z58: invalid number
-bash: printf: Z60: invalid number
-bash: printf: Z62: invalid number
-bash: printf: Z64: invalid number
-bash: printf: Z66: invalid number
-bash: printf: Z68: invalid number
-bash: printf: Z70: invalid number
-bash: printf: Z72: invalid number
-bash: printf: Z74: invalid number
-bash: printf: Z76: invalid number
-bash: printf: Z78: invalid number
-bash: printf: Z80: invalid number
-bash: printf: Z82: invalid number
-bash: printf: Z84: invalid number
-bash: printf: Z86: invalid number
-bash: printf: Z88: invalid number
-bash: printf: Z90: invalid number
-bash: printf: Z92: invalid number
-bash: printf: Z94: invalid number
-bash: printf: Z96: invalid number
-bash: printf: Z98: invalid number
-bash: printf: Z100: invalid number
那么...正确的正则表达式是什么？我应该使用管道吗？
答案1
所以在这里：
printf "file%c%d " {A..Z}{1..100}
大括号扩展产生类似A1, A2, A3... Z99,的字符串Z100。然后printf尝试将它们与格式说明符%c和相匹配%d，使用第一个 for %c、第二个 for %d、第三个 for %c，等等。
但%d期望的是一个数字，但A2实际上不是一个，因此出现了错误。
%c%d期望像A, 1, A, 2... 这样的参数作为不同的参数，但这很难用大括号扩展生成。
由于大括号扩展已经组合了字母和数字序列，printf "file%s " {A..Z}{1..100}因此您可以直接使用扩展的结果。或者甚至只是echo file{A..Z}{1..100}。
或者更直接的版本普卢莫的回答有。
答案2
您可以使用大括号扩展直接与touch：
touch file{A..Z}{1..100}