文件操作 - readable.awk
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文件: /usr/share/doc/gawk/examples/lib/readable.awk
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# readable.awk --- library file to skip over unreadable files # # Arnold Robbins, arnold@skeeve.com, Public Domain # October 2000 # December 2010 BEGIN { for (i = 1; i < ARGC; i++) { if (ARGV[i] ~ /^[a-zA-Z_][a-zA-Z0-9_]*=.*/ \ || ARGV[i] == "-" || ARGV[i] == "/dev/stdin") continue # assignment or standard input else if ((getline junk < ARGV[i]) < 0) # unreadable delete ARGV[i] else close(ARGV[i]) } }
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