Commands using ssh sorted by votes

Commands using ssh (347)

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send a file or directory via ssh compressing with lzma for low trafic
This is sample output - yours may be different.
2

tar -cf - ./file | lzma -c | ssh user@sshserver $(cd /tmp; tar --lzma -xf -)

glaudiston · 2010-08-13 21:52:17 4
Copy from host 1 to host 2 through your host
This is sample output - yours may be different.
2

ssh root@host1 ?cd /somedir/tocopy/ && tar -cf ? .? | ssh root@host2 ?cd /samedir/tocopyto/ && tar -xf -?

Matejunkie · 2010-11-27 00:15:57 4
remove hostname from known_hosts
This is sample output - yours may be different.
2

ssh-keygen -R hostname

harleywastaken · 2011-02-01 18:26:11 7
HTTP GET request on wireshark remotly
This is sample output - yours may be different.
2

ssh USER@HOST "sudo tshark -i eth0 -f 'tcp port 80 and tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x47455420' -w -" | wireshark -k -i -

bitbasher · 2011-06-16 10:36:32 4
Remove invalid key from the known_hosts file for the IP address of a host

Quick shortcut if you know the hostname and want to save yourself one step for looking up the IP address separately.
This is sample output - yours may be different.
2

ssh-keygen -R $(dig +short host.domain.tld)

atoponce · 2012-01-19 15:08:50 3
Live stream a remote desktop over ssh using only ffmpeg

Play with the framerate option '-r' to scale back bandwidth usage. The '-s' option is the captured screan area, not the rescaled size. If you want to rescale add a second '-s' option after '-i :0'. Rescaling smaller will also decrease bandwidth.
This is sample output - yours may be different.
2

ssh user@host "ffmpeg -f x11grab -r 5 -s 1280x720 -i :0 -f avi -" | ffplay - &>/dev/null

buhrietoe · 2012-05-01 06:26:49 5
Copy ssh keys to user@host to enable password-less ssh logins.

Alternative for machines without ssh-copy-id
This is sample output - yours may be different.
2

cat ~/.ssh/id_rsa.pub | ssh user@host 'cat >> ~/.ssh/authorized_keys'

eneko · 2012-12-08 17:00:47 15
Oneliner to run commands on multiple servers

Oneliner to run commands on multiple servers over ssh. - First parameter "$1" is the command you want to execute remotely. ( It can be multiple commands e.g. "hostname;uptime") - Second parameter "${@:2}" represents the remote host/s you want to run the command/s on. Show Sample Output
This is sample output - yours may be different.
```
$ sxh "hostname;uptime" Host1 Host2
Host1
 11:25am  up 7 days,  4:42,  0 users,  load average: 0.09, 0.08, 0.05
Host2
 11:25am  up 7 days,  4:34,  1 user,  load average: 0.00, 0.00, 0.01
```
2

sxh () { for i in "${@:2}"; do ssh "$i" "$1"; done ; }

zlemini · 2013-04-12 11:34:02 8
Get and read log from remote host (works with log on pipe, too)
This is sample output - yours may be different.
2

ssh remoteUser@remoteHost "tail -f /var/log/scs/remoteLogName" | tee localLogName

scanepa · 2013-09-29 20:32:51 7
Automatically tunnel all ports of running docker instances in boot2docker

It requires https://jqplay.org/, that comes with brew: brew install jq Show Sample Output
This is sample output - yours may be different.
```
none :)
```
2

docker ps -q | xargs -n 1 docker inspect | jq '.[0].NetworkSettings.Ports +{} | map(select(. != null)[0].HostPort) | map("-L $.):localhost:\(.)") ' | sed -n 's/.*"\(.*$".*/\1/p' |xargs boot2docker ssh -N

keymon · 2014-07-27 23:30:31 4
oneliner to transfer a directory using ssh and tar

this will tar/send/untrar a whole directory.
This is sample output - yours may be different.
2

tar cvzf - dir | ssh my_server 'tar xzf -'

snaguber · 2014-07-31 18:14:16 9
Backup VPS disk to another host
This is sample output - yours may be different.
2

ssh root@vps.example -p22 "cat /dev/sda1 | gzip -1 - " > vps.sda1.img.gz

tianyu · 2019-04-21 05:25:00 36
Rsync using SSH and outputing results to a text file

--delete will delete copies on remote to match local if deleted on local --stats will output the results -z zip -a archive -A preserve ACL -x don't cross filesystem boundaries -h human readable -e specify the remote shell to use
This is sample output - yours may be different.
2

rsync --delete --stats -zaAxh -e ssh /local_directory/ username@IP_of_remote:/Remote_Directory/ > /Text_file_Directory/backuplog.txt

chicagonpg · 2019-09-10 21:00:29 89
SSH to a machine's internet address if it is not present on your local network

Ping machine once, waiting 1 second for response until failing. Upon fail, ssh globally, otherwise ssh locally.
This is sample output - yours may be different.
1

ping localip -c 1 -W 1 &> /dev/null && ssh localip || ssh globalip

trey · 2009-02-05 10:40:26 524
Validate openssh key & print checksum
This is sample output - yours may be different.
1

ssh-keygen -l -f [pubkey] | awk '{print $2}' | tr -ds ':' '' | egrep -ie "[a-f0-9]{32}"

wwest4 · 2009-02-05 17:42:30 16
Adhoc tar backup

Creates a quick backup with tar to a remote host over ssh.
This is sample output - yours may be different.
1

tar -cvzf - /source/path | ssh <targethostname> -l <username> dd of=/destination/path/backupfile.tgz

smm · 2009-02-06 15:52:09 12
run command on a group of nodes in parallel
This is sample output - yours may be different.
1

echo -n m{1..5}.cluster.net | xargs -d' ' -n1 -P5 -I{} ssh {} 'uptime'

jianingy · 2009-02-08 12:34:04 15
tunnel vnc port

Foward vnc securely from exampleserver.com Show Sample Output
This is sample output - yours may be different.
```
user@exampleserver.com's password:
```
1

ssh -L 5900:localhost:5900 user@exampleserver.com

Jackie · 2009-02-13 04:53:27 9
Connect to remote machine with other enconding charset
This is sample output - yours may be different.
1

LC_ALL=fr_FR luit ssh root@remote_machine_ip

irraz · 2009-03-03 22:42:37 5
Copy files and directories from a remote machine to the local machine

This command will copy files and directories from a remote machine to the local one. Ensure you are in the local directory you want to populate with the remote files before running the command. To copy a directory and it's contents, you could: ssh user@host "(cd /path/to/a/directory ; tar cvf - ./targetdir)" | tar xvf - This is especially useful on *nix'es that don't have 'scp' installed by default.
This is sample output - yours may be different.
1

ssh user@host "(cd /path/to/remote/top/dir ; tar cvf - ./*)" | tar xvf -

dopeman · 2009-03-31 13:08:45 9
Backup with SSH in a archive

PRIVATEKEY - Of course the full path to the private key \n HOST - The host where to get the backup \n SOURCE - The directory you wish to backup \n DESTINATION - The destination for the backup on your local machine
This is sample output - yours may be different.
1

ssh -i $PRIVATEKEY $HOST -C 'cd $SOURCE; tar -cz --numeric-owner .' | tee $DESTINATION/backup.tgz | tar -tz

GeckoDH · 2009-05-18 20:36:45 4
clone a hard drive to a remote directory via ssh tunnel, and compressing the image
This is sample output - yours may be different.
1

# dd if=/dev/sda | gzip -c | ssh user@ip 'dd of=/mnt/backups/sda.dd'

coolman · 2009-07-06 19:05:55 7
Pull up remote desktop for other than gnome/kde eg fluxbox

If the remote doesn't export its desktop (eg fluxbox, blackbox etc) then you need to run a x11vnc server there and a vncviewer at the local end. This command does the lot for you - it assumes that you can 'ssh' to the box without a password and that x11vnc is installed at the remote end.
This is sample output - yours may be different.
1

rdp() { ssh $1 sh -c 'PATH=$PATH:/usr/local/bin; x11vnc -q -rfbauth ~/.vnc/passwd -display :0' & sleep 4; vncviewer $1:0 & }

bhepple · 2009-11-25 07:21:02 3
test moduli file generated for openssh

this command test the moduli file generated by the command ssh-keygen -G /tmp/moduli-2048.candidates -b 2048 . The test can be long depend of your cpu power , around 5 minutes to 30 minutes
This is sample output - yours may be different.
1

ssh-keygen -T moduli-2048 -f /tmp/moduli-2048.candidates

eastwind · 2010-01-29 19:35:21 3
Skip banner on ssh login prompt

This allows you to skip the banner (usually /etc/issue.net) on ssh connections. Useful to avoid banners outputted to your mail by rsync cronjobs.
This is sample output - yours may be different.
1

ssh -q user@server

KoRoVaMiLK · 2010-03-24 12:02:55 4
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Simulate typing but with mistakes

The output will show jerk, then wonderful person since echo parses the \b character.

Easily search running processes (alias).

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

vim easter egg

inside vim try: :help 42 to get the meaning of life, the universe and everything !

use jq to validate and pretty-print json output

the `jq` tool can also be used do validate json files and pretty print output `cat file.json | jq` available on several platforms, including newer debian-based systems via `#sudo apt install jq`, mac via `brew install jq`, and from source https://stedolan.github.io/jq/download/

list files recursively by size

Print just line 4 from a textfile

Prints the 4th line and then quits. (Credit goes to flatcap in comments: http://www.commandlinefu.com/commands/view/6031/print-just-line-4-from-a-textfile#comment.)

Database size

Mysql command to list the disk usage of the database

whois filtering the important information

File rotation without rename command

Rotates log files with "gz"-extension in a directory for 7 days and enumerates the number in file name. i.e.: logfile.1.gz > logfile.2.gz I needed this line due to the limitations on AIX Unix systems which do not ship with the rename command.

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Commands using ssh (347)

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