printf ("%-20s %s\n", "get-verbose", "get verbose mode");
printf ("%-20s %s\n", "glob-expand", "expand a wildcard path");
printf ("%-20s %s\n", "grub-install", "install GRUB");
+ printf ("%-20s %s\n", "head", "return first 10 lines of a file");
+ printf ("%-20s %s\n", "head-n", "return first N lines of a file");
printf ("%-20s %s\n", "hexdump", "dump a file in hexadecimal");
printf ("%-20s %s\n", "is-busy", "is busy processing a command");
printf ("%-20s %s\n", "is-config", "is in configuration state");
printf ("%-20s %s\n", "strings", "print the printable strings in a file");
printf ("%-20s %s\n", "strings-e", "print the printable strings in a file");
printf ("%-20s %s\n", "sync", "sync disks, writes are flushed through to the disk image");
+ printf ("%-20s %s\n", "tail", "return last 10 lines of a file");
+ printf ("%-20s %s\n", "tail-n", "return last N lines of a file");
printf ("%-20s %s\n", "tar-in", "unpack tarfile to directory");
printf ("%-20s %s\n", "tar-out", "pack directory into tarfile");
printf ("%-20s %s\n", "tgz-in", "unpack compressed tarball to directory");
pod2text ("pvresize - resize an LVM physical volume", " pvresize <device>\n\nThis resizes (expands or shrinks) an existing LVM physical\nvolume to match the new size of the underlying device.");
else
if (strcasecmp (cmd, "sfdisk_N") == 0 || strcasecmp (cmd, "sfdisk-N") == 0)
- pod2text ("sfdisk-N - modify a single partition on a block device", " sfdisk-N <device> <n> <cyls> <heads> <sectors> <line>\n\nThis runs L<sfdisk(8)> option to modify just the single\npartition C<n> (note: C<n> counts from 1).\n\nFor other parameters, see C<sfdisk>. You should usually\npass C<0> for the cyls/heads/sectors parameters.\n\nB<This command is dangerous. Without careful use you\ncan easily destroy all your data>.");
+ pod2text ("sfdisk-N - modify a single partition on a block device", " sfdisk-N <device> <partnum> <cyls> <heads> <sectors> <line>\n\nThis runs L<sfdisk(8)> option to modify just the single\npartition C<n> (note: C<n> counts from 1).\n\nFor other parameters, see C<sfdisk>. You should usually\npass C<0> for the cyls/heads/sectors parameters.\n\nB<This command is dangerous. Without careful use you\ncan easily destroy all your data>.");
else
if (strcasecmp (cmd, "sfdisk_l") == 0 || strcasecmp (cmd, "sfdisk-l") == 0)
pod2text ("sfdisk-l - display the partition table", " sfdisk-l <device>\n\nThis displays the partition table on C<device>, in the\nhuman-readable output of the L<sfdisk(8)> command. It is\nnot intended to be parsed.");
if (strcasecmp (cmd, "wc_c") == 0 || strcasecmp (cmd, "wc-c") == 0)
pod2text ("wc-c - count characters in a file", " wc-c <path>\n\nThis command counts the characters in a file, using the\nC<wc -c> external command.");
else
+ if (strcasecmp (cmd, "head") == 0)
+ pod2text ("head - return first 10 lines of a file", " head <path>\n\nThis command returns up to the first 10 lines of a file as\na list of strings.\n\nBecause of the message protocol, there is a transfer limit \nof somewhere between 2MB and 4MB. To transfer large files you should use\nFTP.");
+ else
+ if (strcasecmp (cmd, "head_n") == 0 || strcasecmp (cmd, "head-n") == 0)
+ pod2text ("head-n - return first N lines of a file", " head-n <nrlines> <path>\n\nIf the parameter C<nrlines> is a positive number, this returns the first\nC<nrlines> lines of the file C<path>.\n\nIf the parameter C<nrlines> is a negative number, this returns lines\nfrom the file C<path>, excluding the last C<nrlines> lines.\n\nIf the parameter C<nrlines> is zero, this returns an empty list.\n\nBecause of the message protocol, there is a transfer limit \nof somewhere between 2MB and 4MB. To transfer large files you should use\nFTP.");
+ else
+ if (strcasecmp (cmd, "tail") == 0)
+ pod2text ("tail - return last 10 lines of a file", " tail <path>\n\nThis command returns up to the last 10 lines of a file as\na list of strings.\n\nBecause of the message protocol, there is a transfer limit \nof somewhere between 2MB and 4MB. To transfer large files you should use\nFTP.");
+ else
+ if (strcasecmp (cmd, "tail_n") == 0 || strcasecmp (cmd, "tail-n") == 0)
+ pod2text ("tail-n - return last N lines of a file", " tail-n <nrlines> <path>\n\nIf the parameter C<nrlines> is a positive number, this returns the last\nC<nrlines> lines of the file C<path>.\n\nIf the parameter C<nrlines> is a negative number, this returns lines\nfrom the file C<path>, starting with the C<-nrlines>th line.\n\nIf the parameter C<nrlines> is zero, this returns an empty list.\n\nBecause of the message protocol, there is a transfer limit \nof somewhere between 2MB and 4MB. To transfer large files you should use\nFTP.");
+ else
display_builtin_command (cmd);
}
{
int r;
const char *device;
- int n;
+ int partnum;
int cyls;
int heads;
int sectors;
return -1;
}
device = argv[0];
- n = atoi (argv[1]);
+ partnum = atoi (argv[1]);
cyls = atoi (argv[2]);
heads = atoi (argv[3]);
sectors = atoi (argv[4]);
line = argv[5];
- r = guestfs_sfdisk_N (g, device, n, cyls, heads, sectors, line);
+ r = guestfs_sfdisk_N (g, device, partnum, cyls, heads, sectors, line);
return r;
}
return 0;
}
+static int run_head (const char *cmd, int argc, char *argv[])
+{
+ char **r;
+ const char *path;
+ if (argc != 1) {
+ fprintf (stderr, "%s should have 1 parameter(s)\n", cmd);
+ fprintf (stderr, "type 'help %s' for help on %s\n", cmd, cmd);
+ return -1;
+ }
+ path = argv[0];
+ r = guestfs_head (g, path);
+ if (r == NULL) return -1;
+ print_strings (r);
+ free_strings (r);
+ return 0;
+}
+
+static int run_head_n (const char *cmd, int argc, char *argv[])
+{
+ char **r;
+ int nrlines;
+ const char *path;
+ if (argc != 2) {
+ fprintf (stderr, "%s should have 2 parameter(s)\n", cmd);
+ fprintf (stderr, "type 'help %s' for help on %s\n", cmd, cmd);
+ return -1;
+ }
+ nrlines = atoi (argv[0]);
+ path = argv[1];
+ r = guestfs_head_n (g, nrlines, path);
+ if (r == NULL) return -1;
+ print_strings (r);
+ free_strings (r);
+ return 0;
+}
+
+static int run_tail (const char *cmd, int argc, char *argv[])
+{
+ char **r;
+ const char *path;
+ if (argc != 1) {
+ fprintf (stderr, "%s should have 1 parameter(s)\n", cmd);
+ fprintf (stderr, "type 'help %s' for help on %s\n", cmd, cmd);
+ return -1;
+ }
+ path = argv[0];
+ r = guestfs_tail (g, path);
+ if (r == NULL) return -1;
+ print_strings (r);
+ free_strings (r);
+ return 0;
+}
+
+static int run_tail_n (const char *cmd, int argc, char *argv[])
+{
+ char **r;
+ int nrlines;
+ const char *path;
+ if (argc != 2) {
+ fprintf (stderr, "%s should have 2 parameter(s)\n", cmd);
+ fprintf (stderr, "type 'help %s' for help on %s\n", cmd, cmd);
+ return -1;
+ }
+ nrlines = atoi (argv[0]);
+ path = argv[1];
+ r = guestfs_tail_n (g, nrlines, path);
+ if (r == NULL) return -1;
+ print_strings (r);
+ free_strings (r);
+ return 0;
+}
+
int run_action (const char *cmd, int argc, char *argv[])
{
if (strcasecmp (cmd, "launch") == 0 || strcasecmp (cmd, "run") == 0)
if (strcasecmp (cmd, "wc_c") == 0 || strcasecmp (cmd, "wc-c") == 0)
return run_wc_c (cmd, argc, argv);
else
+ if (strcasecmp (cmd, "head") == 0)
+ return run_head (cmd, argc, argv);
+ else
+ if (strcasecmp (cmd, "head_n") == 0 || strcasecmp (cmd, "head-n") == 0)
+ return run_head_n (cmd, argc, argv);
+ else
+ if (strcasecmp (cmd, "tail") == 0)
+ return run_tail (cmd, argc, argv);
+ else
+ if (strcasecmp (cmd, "tail_n") == 0 || strcasecmp (cmd, "tail-n") == 0)
+ return run_tail_n (cmd, argc, argv);
+ else
{
fprintf (stderr, "%s: unknown command\n", cmd);
return -1;
git.annexia.org / libguestfs.git / blobdiff