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I'm guessing that all the appliance names do not start with the text "app".

A bit more of a generic approach might be to treat lines with only one field as an appliance name (assuming here that...

Using awk -

$ awk '/^app/ {pre=$0; next}
length($0) {print pre " " $0 } ' filename > newfile

$ cat newfile
applianceName1 1.0 123 some
applianceName1 5.3 456 random
applianceName1 3.5...

I don't think wall takes a file -- it'd just print 'duplex_error' instead of printing the message from that file.

xargs wall < duplex_error

GitHub - deepgrace/tetris: Tetris implementation in all kinds of Programming Languages (https://github.com/deepgrace/tetris)

Usage: bash Tetris_Game [ <runlevel> [ <previewlevel> [ <speedlevel> [...

If it says it was in use I suspect it meant it; you might have had things mounted, etc, preventing it from unloading that module.

boot from an external media and check your filesystems and the configuration of /etc/vfstab and the log files for error messages.

Please state what Operating System you have and describe your hardware configuration including memory and discs and enything relevant to performance.

Is it safe to assume that the filesystem will...

When you say somewhere else, I guess you mean a different server ?
I imagine the "gzip" and the ssl encryption in scp are both adding quite an overhead.

There is a tradeoff between network...

Here is your problem - you are reading millions of directory entries and writing to a tarfile.
Then you copy the tarfile somewhere, then extract. Tons of I/O writing the tarball, I/O copying it, ...

Really large directories (lots and lots of entries) are very slow to read. Use the filesystem stats:

/* ffcnt.c fast file count
print the number of files in a filesystem
usage: ffcnt...

This might be faster:


#include <stdio.h>
#include <ftw.h>

static long file_count = 0L;

int ftw_callback( const char *path, const struct stat *sb, int flag )
{
if ( FTW_F == flag )
...

Anything that counts files will have to do so the same way: checking directory entries. So there's no special "faster ls". (If there was, why wouldn't we use it for everything?)

If you can...

There is no "zpool rename" command. A pool need to be reimported to have its name changed. You can change its file systems mountpoints but they must not be in use for the command to succeed so that...