Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [echo]

31 questions
45
votes
6 answers

How to automatically close netcat connection after data is sent?

I am executing the following command from a script: echo '{"hostUp": true}' | sudo /usr/local/bin/netcat localhost 8001 However, the netcat client stays open indefinitely. How can I close the connection once this data has been sent?
Justin Meltzer
  • 621
  • 1
  • 9
  • 18
22
votes
2 answers

Send echo message to graylog2 via GELF TCP 12201 port

I need to send a message to graylog2 server via echo to test if the %{@type} for facility is corrent, but once I do the echo thats in GELF support does not arrive in to my graylog2 server. If it restart graylog2 then the messages about it starting…
cr0c
  • 1,116
  • 3
  • 15
  • 32
9
votes
2 answers

Need a live UDP echo Server IP and port

I require to test my UDP program using echo server. I have tested this application in LAN but now I require it to test it in Internet. Is there and globally recognize freely available well known ECHO server that I can use directly in my application…
Amit
  • 211
  • 1
  • 2
  • 7
5
votes
1 answer

`psql` expanded mode equivalency for `mysql`

Am frustated by things like: 0:33:1407402356:root@ahost:~# echo 'use wordpress_3_6_1; select * from wp_posts;' | mysql -u mysqluser -pmysqlpasswdord | wc -l -L 42 40585 SQL query results being mangled ugly. PostgreSQL s psql provides the helper…
178024
  • 36
  • 3
  • 15
4
votes
2 answers

Getting error "Invalid command 'echo'..." when restarting apache when trying to use SSLPassPhraseDialog

Using a solution to another answer, I added the following to my apache config: SSLPassPhraseDialog exec:/path/to/passphrase-script And in that script, I placed this: #!/bin/sh echo "put the passphrase here" Now, when I restart apache, i get the…
David Legatt
  • 143
  • 1
  • 5
3
votes
2 answers

supress expansion of * in echo

I am working on a script which dynamically executes some queries on daily basis. These queries are coming from a table in the database. Here is the sample output of the query table: +---------------+-------------------------------+---------+ |…
divinedragon
  • 133
  • 4
2
votes
1 answer

fdisk with a a single command fail in the second execution

I ran a script to format a disk with fdisk like this: (echo n; echo p; echo $number_part; echo $firs_sector; echo $second_sector; echo t; echo $format; echo p; echo w) | fdisk /dev/$disk when i execute for the first time, the format seen like: …
BrennQuin
  • 135
  • 6
2
votes
3 answers

Can't pipe echo to netcat?

I have the following command: echo 'HTTP/1.1 200 OK\r\n' | nc -l -p 8000 -c and when I curl localhost:8000 I am not seeing HTTP/1.1 200 .. being printed. I am on mac os x with netcat 0.7.1 Any ideas? #!/bin/bash trap 'my_exit; exit' SIGINT…
Tinker
  • 161
  • 1
  • 1
  • 5
2
votes
3 answers

Bash Script Echo -n

I am writing a bash script, and I want to echo a string, but without a newline automatically added to the end. Reading the man page it says the flag is -n. The problem is, when I do: echo -n "My string is here" The output in the bash script is: -n…
Justin
  • 5,008
  • 19
  • 58
  • 82
1
vote
0 answers

If an echo from tunnel interface IP is successful but an echo from the tunnel interface source fails, is that an outage with ISP?

Trying to track down an outage. Our Cisco ASR has a tunnel configured as IP: 100.64.#.# Source: 192.#.#.# (Amazon DX block, this address is also configured as a loopback on another interface) Destination: 52.#.#.# (tunnel endpoint through…
screampuff
  • 111
  • 2
1
vote
0 answers

xinetd: udp service returning just a string

I'm using xinetd to provide a simple service, that basically only needs to return a string value. The service is required to support tcp and udp. The tcp services looks like this, and works as expected: service simple-tcp { disable = no …
soey
  • 111
  • 1
1
vote
2 answers

Echo Variable - Same way, different output

I wrote a shell script with the following content: #!/bin/bash value=`cat test.txt` echo "Output: $value" >> currentOutput.txt By executing this script in shell, it writes correctly the value inside the currentOutput.txt. By executing this script…
Tyralcori
  • 125
  • 10
1
vote
1 answer

How to generate a signature with a launchd plist?

Is it possible to implement the following shell script completely as a launchd plist to generate a signature with timestamp in the StandardErrorPath / StandardErrorPath files? #!/bin/sh echo "Hi, your FOO.plist was here at $(date)" This one doesn't…
user3077223
  • 13
  • 2
1
vote
1 answer

echo + append string + linux

please advice how it can be - ( this action was on linux machine ) why the string - "append" that I add with echo is after the line "spb_IP=172.17.100.122" and not under the line - "spb_IP=172.17.100.122" ???? more file spa_IP=172.17.100.121 …
yael
  • 2,363
  • 4
  • 28
  • 41
1
vote
1 answer

How do I use a shell builtin command rather than the system command?

I'm specifically asking about FreeBSD. I am using the default /bin/csh as my shell. There is a binary version of echo at /bin/echo, and there is an echo command built into the shell. The system command lacks the ability to use System V style…
Utkonos
  • 332
  • 3
  • 12
1
2 3