Commands by IF_Rock (3)

  • Sorts blank line delimited paragraphs. '-i' -- case insensitivity option -- removes redundant paragraphs in a case insensitive way, and then sorts in a case insensitive way. If you search CommandLineFu with multiple anded terms searches, redundancy can ensue. This sorts the retrieved text (among other kinds of data), and removes the redundancy. Show Sample Output


    0
    gawk 'BEGIN {RS="\n\n"; if (ARGV[1]=="-i")IGNORECASE=1;ARGC=1}{if (IGNORECASE)Text[tolower($0)]=$0;else Text[$0]=$0 };END {N=asort(Text);for(i=1;i<=N;i++)printf "%s\n\n",Text[i]}' -i<Test.txt
    IF_Rock · 2011-05-11 01:03:30 0
  • Among other things, this allows the sorting of comment descriptions and command lines retrieved as text from CommandLineFu.com. Show Sample Output


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    gawk 'BEGIN {RS="\n\n"; if (ARGV[1]=="-i"){IGNORECASE=1; ARGC=1}};{Text[NR]=$0};END {asort(Text);for (i=1;i<=NR;i++) printf "%s\n\n",Text[i] }' -i<Zip.txt
    IF_Rock · 2011-05-10 19:08:27 0
  • { ... } vs ( ... ) reduces the process count, I believe. Typically, I use this logic to redirect a series of commands to a pipe -- { command1 args1 ; command2 args2}|less -- or file -- { command1 args1 ; command2 args2}>foo -- or to spawn the series as a background process -- { ... } & .


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    { command1 args1 ; command2 args2 ; ... }
    IF_Rock · 2011-04-12 20:01:51 0

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