54 lines
1.1 KiB
Awk
54 lines
1.1 KiB
Awk
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# split.awk --- do split in awk
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# Arnold Robbins, arnold@gnu.ai.mit.edu, Public Domain
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# May 1993
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# usage: split [-num] [file] [outname]
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BEGIN {
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outfile = "x" # default
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count = 1000
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if (ARGC > 4)
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usage()
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i = 1
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if (ARGV[i] ~ /^-[0-9]+$/) {
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count = -ARGV[i]
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ARGV[i] = ""
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i++
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}
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# test argv in case reading from stdin instead of file
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if (i in ARGV)
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i++ # skip data file name
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if (i in ARGV) {
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outfile = ARGV[i]
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ARGV[i] = ""
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}
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s1 = s2 = "a"
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out = (outfile s1 s2)
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}
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{
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if (++tcount > count) {
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close(out)
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if (s2 == "z") {
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if (s1 == "z") {
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printf("split: %s is too large to split\n", \
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FILENAME) > "/dev/stderr"
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exit 1
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}
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s1 = chr(ord(s1) + 1)
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s2 = "a"
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} else
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s2 = chr(ord(s2) + 1)
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out = (outfile s1 s2)
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tcount = 1
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}
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print > out
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}
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function usage( e)
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{
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e = "usage: split [-num] [file] [outname]"
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print e > "/dev/stderr"
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exit 1
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}
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