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update usage

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Ryo Nakamura
2022-10-15 22:19:40 +09:00
parent 303a9eb974
commit 579629dea2
1 changed files with 12 additions and 6 deletions
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18
src/main.c
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@@ -9,32 +9,38 @@
#include <platform.h>
#define DEFAULT_MIN_CHUNK_SZ (2 << 20) /* 2MB */
#define DEFAULT_MIN_CHUNK_SZ (64 << 20) /* 64MB */
void usage(bool print_help) {
printf("sscp: super scp, copy files over multiple ssh connections\n"
"\n"
"Usage: sscp [rvC] [-n max_conns] [-s min_chunk_sz] [-S max_chunk_sz]\n"
" [-l login_name] [-p port] [-i identity_file]\n"
" [-c cipher_spec] source ... target\n"
" [-c cipher_spec] source ... target_directory\n"
"\n");
if (!print_help)
return;
printf(" -r copy directory recusrively\n"
printf(" -r expand directory recusrively\n"
" -n NR_CONNECTIONS max number of connections (default: # of cpu cores)\n"
" -s CHUNKSIZE min chunk size (default: 2MB)\n"
" -S CHUNKSIZE max chunk size (default: filesize / nr_conn)\n"
" -s MIN_CHUNKSIZE min chunk size (default: 64MB)\n"
" -S MAX_CHUNKSIZE max chunk size (default: filesize / nr_conn)\n"
"\n"
" -l LOGIN_NAME login name\n"
" -p PORT port number\n"
" -i IDENTITY identity to be used for ssh\n"
" -i IDENTITY identity file for publickey authentication\n"
" -c CIPHER cipher spec, see `ssh -Q cipher`\n"
" -C enable compression on libssh\n"
" -v increment output level\n"
" -h print this help\n"
"\n");
printf(" Note:\n"
" Not similar to scp and rsync, target in sscp must be directory\n"
" (at present). This means that sscp cannot change file names.\n"
" sscp copies file(s) into a directory.\n"
"\n");
}
int main(int argc, char **argv)