diff options
| -rw-r--r-- | include/usage.h | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/include/usage.h b/include/usage.h index 8b1a8d785..c4516e0eb 100644 --- a/include/usage.h +++ b/include/usage.h @@ -849,9 +849,21 @@ "\t-I initstring\tSets the init string to send before anything else\n" \ "\t-H login_host\tLog login_host into the utmp file as the hostname" - +#if ENABLE_FEATURE_GREP_EGREP_ALIAS +#define USAGE_GREP_E(a) a +#else +#define USAGE_GREP_E(a) +#endif +#if ENABLE_FEATURE_GREP_CONTEXT +#define USAGE_GREP_CTX(a) a +#else +#define USAGE_GREP_CTX(a) +#endif #define grep_trivial_usage \ - "[-ihHnqvs] PATTERN [FILEs...]" + "[-ihHnqvs" \ + USAGE_GREP_E("E") \ + USAGE_GREP_CTX("ABC") \ + "] PATTERN [FILEs...]" #define grep_full_usage \ "Search for PATTERN in each FILE or standard input.\n\n" \ "Options:\n" \ @@ -859,10 +871,20 @@ "\t-h\tsuppress the prefixing filename on output\n" \ "\t-i\tignore case distinctions\n" \ "\t-l\tlist names of files that match\n" \ + "\t-L\tlist names of files that do not match\n" \ "\t-n\tprint line number with output lines\n" \ - "\t-q\tbe quiet. Returns 0 if result was found, 1 otherwise\n" \ + "\t-q\tbe quiet. Returns 0 if PATTERN was found, 1 otherwise\n" \ "\t-v\tselect non-matching lines\n" \ - "\t-s\tsuppress file open/read error messages" + "\t-s\tsuppress file open/read error messages\n" \ + "\t-c\tonly print count of matching lines\n" \ + "\t-f\tread PATTERN from file\n" \ + "\t-e\tPATTERN is a regular expression\n" \ + "\t-F\tPATTERN is a set of newline-separated strings" \ + USAGE_GREP_E("\n\t-E\tPATTERN is an extended regular expression") \ + USAGE_GREP_CTX("\n\t-A\tprint NUM lines of trailing context") \ + USAGE_GREP_CTX("\n\t-B\tprint NUM lines of leading context") \ + USAGE_GREP_CTX("\n\t-C\tprint NUM lines of output context") + #define grep_example_usage \ "$ grep root /etc/passwd\n" \ "root:x:0:0:root:/root:/bin/bash\n" \ |