* added (and documented) "-n" option for head -
contributed Friedrich Vedder <fwv@myrtle.lahn.de> * Cleanup for a number of usage messages -- also contributed Friedrich Vedder <fwv@myrtle.lahn.de> -Erik
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@@ -35,7 +35,7 @@
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typedef void (Display)(size_t, char *);
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static const char du_usage[] =
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"Usage: du [OPTION]... [FILE]...\n\n"
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"du [OPTION]... [FILE]...\n\n"
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"\t-s\tdisplay only a total for each argument\n"
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;
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@@ -140,4 +140,4 @@ du_main(int argc, char **argv)
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exit(0);
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}
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/* $Id: du.c,v 1.8 1999/12/17 18:44:15 erik Exp $ */
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/* $Id: du.c,v 1.9 2000/01/23 18:19:02 erik Exp $ */
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@@ -26,10 +26,12 @@
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#include <stdio.h>
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const char head_usage[] =
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"Usage: head [FILE]...\n\n"
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"head [OPTION] [FILE]...\n\n"
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"Print first 10 lines of each FILE to standard output.\n"
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"With more than one FILE, precede each with a header giving the\n"
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"file name. With no FILE, or when FILE is -, read standard input.\n";
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"file name. With no FILE, or when FILE is -, read standard input.\n\n"
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"Options:\n"
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"\t-n NUM\t\tPrint first NUM lines instead of first 10\n";
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int
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head(int len, FILE *src)
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@@ -49,22 +51,22 @@ head(int len, FILE *src)
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int
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head_main(int argc, char **argv)
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{
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int i = 1;
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char opt;
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int len = 10;
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/* 1st option is potentially special */
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if ((argc > 1) && (argv[1][0] == '-') && isDecimal(argv[1][1])) {
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int tmplen = atoi(&argv[1][1]);
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if (tmplen) { len = tmplen; }
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i = 2;
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}
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int len = 10, tmplen, i;
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/* parse argv[] */
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for ( ; i < argc; i++) {
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for (i = 1; i < argc; i++) {
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if (argv[i][0] == '-') {
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opt = argv[i][1];
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switch (opt) {
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case 'n':
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tmplen = 0;
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if (i++ < argc)
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tmplen = atoi(argv[i]);
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if (tmplen < 1)
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usage(head_usage);
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len = tmplen;
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break;
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case '-':
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case 'h':
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usage(head_usage);
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@@ -103,4 +105,4 @@ head_main(int argc, char **argv)
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exit(0);
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}
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/* $Id: head.c,v 1.4 1999/12/17 18:52:06 erik Exp $ */
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/* $Id: head.c,v 1.5 2000/01/23 18:19:02 erik Exp $ */
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@@ -26,7 +26,8 @@
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#include <errno.h>
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#include <sys/param.h>
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static const char mkdir_usage[] = "Usage: mkdir [OPTION] DIRECTORY...\n\n"
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static const char mkdir_usage[] =
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"mkdir [OPTION] DIRECTORY...\n\n"
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"Create the DIRECTORY(ies), if they do not already exist\n\n"
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"Options:\n"
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"\t-m\tset permission mode (as in chmod), not rwxrwxrwx - umask\n"
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@@ -29,7 +29,7 @@
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#include <errno.h>
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static const char sort_usage[] =
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"Usage: sort [OPTION]... [FILE]...\n\n"
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"sort [OPTION]... [FILE]...\n\n"
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;
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/* typedefs _______________________________________________________________ */
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@@ -309,4 +309,4 @@ sort_main(int argc, char **argv)
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exit(0);
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}
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/* $Id: sort.c,v 1.8 1999/12/23 22:46:10 beppu Exp $ */
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/* $Id: sort.c,v 1.9 2000/01/23 18:19:02 erik Exp $ */
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@@ -27,7 +27,7 @@
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#include <errno.h>
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static const char uniq_usage[] =
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"Usage: uniq [OPTION]... [INPUT [OUTPUT]]\n"
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"uniq [OPTION]... [INPUT [OUTPUT]]\n"
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"Discard all but one of successive identical lines from INPUT (or\n"
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"standard input), writing to OUTPUT (or standard output).\n"
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"\n"
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@@ -193,4 +193,4 @@ uniq_main(int argc, char **argv)
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exit(0);
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}
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/* $Id: uniq.c,v 1.4 2000/01/07 01:57:32 beppu Exp $ */
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/* $Id: uniq.c,v 1.5 2000/01/23 18:19:02 erik Exp $ */
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@@ -28,7 +28,6 @@ static const char wc_usage[] = "wc [OPTION]... [FILE]...\n\n"
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"\t-c\tprint the byte counts\n"
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"\t-l\tprint the newline counts\n"
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"\t-L\tprint the length of the longest line\n"
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"\t-L\tprint the length of the longest line\n"
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"\t-w\tprint the word counts\n";
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static int total_lines, total_words, total_chars, max_length;
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