The old boy 23-stage classroom real-time investigation of an enterprise Shell interview test questions

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1, according to the frequency of word occurrence descending sort! 2, in descending order by the frequency of letters! the squid project provides a number of resources to assist  users design,implement and support squid installations. please browse  The documentation and support sections for more infomation Solution:cat  Test.txt the squid project provides a number of resources to  assist users design,implement and support squid installations. please  browse the documentation and support sections for more  Infomation sorted by word: FA 1:[[email protected] ~]# awk -f  "[,.  ]"   "{for (i=1;i<= nf;i++) array[$i]++}end{for (key in array) print array[key],key| " Sort -nr "} '  oldboy.txt|column -t2  the2  support2  squid2   and1  users1 &nbSp;to1  sections1  resources1  provides1  project1  please1   of1  number1  more1  installations1  infomation1   implement1  for1  documentation1  design1  browse1   ASSIST1&NBSP;&NBSP;A1 law 2:[[email protected] ~]# tr  "[ ,.]"   "\ n" <oldboy.txt|grep -v  "^$" |sort|uniq -c|sort -rn        2 the      2 support      2  squid      2 and      1 users       1 to      1 sections       1 resources      1 provides       1 project       1 please      1 of      1  number      1 more      1  installations      1 infomation      1  implement      1 for      1  documentation      1 design      1  Browse      1 assist      1 a by alphabetical order 1[[ email protected] ~]# tr  "{ |,|.}"   "\ n" <oldboy.txt|awk -F  "   ' {for (i=1;i<=nf;i++) array[$i]++}end{for (key in  array) print array[key],key| " Sort -nr "} ' 19 s17 e16 o14 t12 n12 i11 r9 a8 u7 p7  d6 m4 l4 c3 f2 q2 h2 b1 w1 v1 p1 j1 g[[email protected] ~]# tr  "[ ,.]"   "\ n" <oldboy.txt|awk  ' {for (I=1; i<=length ($);  i++)  ++s[substr ($0,i,1)]}  End {for (a in s)  print s[a], a| " Sort -rn "} ' 19 s17 e16 o14 t12 n12 i11 r9 a8 u7 p7  D6 m4 l4 c3 f2 q2 h2 b1 w1 v1 p1 j1 g

A super-detailed case study of the awk array teaches the latest advanced OPS classes at the Old boys!

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The old boy 23-stage classroom real-time investigation of an enterprise Shell interview test questions