Hi,
For my bash script, terminal with bash is generate an OK output and program works right.
already,
terminal with ash have "line 48: syntax error: Bad substitution" output and program don't work.
:confused: (0 Replies)
Hi All,
I need to pass a variable to perl script from bash script, where in perl i am using if condition. Here is the cmd what i am using in perl
FROM_DATE="06/05/2008"
TO_DATE="07/05/2008"
"perl -ne ' print if ( $_ >="$FROM_DATE" && $_ <= "$TO_DATE" ) ' filename"
filename has... (10 Replies)
hi,
i have a script that runs on bash and would like to run it on a machine that has csh and bash. the default setting on that machine is csh. i dont want to change my code to run it with a csh shell. is there any way i can run the script (written in bash) on this machine? in other words is there... (3 Replies)
Hey guys, i'm having trouble complete one of my bash scripts
I'm hoping to ---
1. Modify bash so that then the user types "ls" the command that is executed is "ls -al"
2. Modify the point of entry in bash when the user accesses it, moving the initial location to /var
I've somewhat done #2,... (9 Replies)
Hi everybody,
Lets say, I have two bash scripts named down.sh and up.sh located in two different folders named ~/home/a/ and ~/home/b/
Now I want to write another bash script, located in ~/home/ which runs these other two scripts, so that I only have to execute this one comprehensive script... (1 Reply)
# check host value regex='^(||1|2|25)(\.(||1|2|25)){3}$' if ')" != "" ]; then if ]; then echo host $host not found exit 4 fi elif ]; then echo $host is an invalid host address exit 5 fi
espeacailly the top regex part?
---------- Post updated at 06:58 PM ---------- Previous update was... (1 Reply)
I want to give my long scripts to customer. The customer must not be able to read the scripts even if he has the password. The following command locks and unlocks the script but the set +x is simply ignored.
The code:
read -p 'Script: ' S && C=$S.crypt H='eval "$((dd if=$0 bs=1 skip=//|gpg... (7 Replies)
So I'm trying to pass certain json elements as env vars and use them later on in a script.
Sample json:
JSON='{
"Element1": "file-123456",
"Element2": "Name, of, company written in, a very weird way",
"Element3": "path/to/some/file.txt",
}'
(part of the) script:
for s... (5 Replies)
I'm new to utilities like socat and netcat and I'm not clear if they will do what I need.
I have a "compileDeployStartWebServer.sh" script and a "StartBrowser.sh" script that are started by emacs/elisp at the same time in two different processes.
I'm using Cygwin bash on Windows 10.
My... (3 Replies)
In Bash shell - the ps -ef shows only the /bin/bash but the script name is not displayed ? Is there any way to get the script names for the process command ?
--- Post updated at 08:39 AM ---
in KSH (Korn Shell), my command output shows the script names but when run in the Bash Shell... (3 Replies)
Discussion started by: i4ismail
3 Replies
LEARN ABOUT FREEBSD
ng_tcpmss
NG_TCPMSS(4) BSD Kernel Interfaces Manual NG_TCPMSS(4)NAME
ng_tcpmss -- netgraph node to adjust TCP MSS option
SYNOPSIS
#include <netgraph.h>
#include <netgraph/ng_tcpmss.h>
DESCRIPTION
The tcpmss node type is designed to alter the Maximum Segment Size option of TCP packets. This node accepts an arbitrary number of hooks.
Initially a new hook is considered unconfigured. The NG_TCPMSS_CONFIG control message is used to configure a hook.
CONTROL MESSAGES
This node type supports the generic control messages, plus the following.
NGM_TCPMSS_CONFIG (config)
This control message configures node to do given MSS adjusting on a particular hook. It requires the struct ng_tcpmss_config to be sup-
plied as an argument:
struct ng_tcpmss_config {
char inHook[NG_HOOKSIZ];
char outHook[NG_HOOKSIZ];
uint16_t maxMSS;
}
This means: packets received on inHook would be checked for TCP MSS option and the latter would be reduced down to maxMSS if it exceeds
maxMSS. After that, packets would be sent to hook outHook.
NGM_TCPMSS_GET_STATS (getstats)
This control message obtains statistics for a given hook. The statistics are returned in struct ng_tcpmss_hookstat:
struct ng_tcpmss_hookstat {
uint64_t Octets; /* total bytes */
uint64_t Packets; /* total packets */
uint16_t maxMSS; /* maximum MSS */
uint64_t SYNPkts; /* TCP SYN packets */
uint64_t FixedPkts; /* changed packets */
};
NGM_TCPMSS_CLR_STATS (clrstats)
This control message clears statistics for a given hook.
NGM_TCPMSS_GETCLR_STATS (getclrstats)
This control message obtains and clears statistics for a given hook.
EXAMPLES
In the following example, packets are injected into the tcpmss node using the ng_ipfw(4) node.
# Create tcpmss node and connect it to ng_ipfw node
ngctl mkpeer ipfw: tcpmss 100 qqq
# Adjust MSS to 1452
ngctl msg ipfw:100 config '{ inHook="qqq" outHook="qqq" maxMSS=1452 }'
# Divert traffic into tcpmss node
ipfw add 300 netgraph 100 tcp from any to any tcpflags syn out via fxp0
# Let packets continue with ipfw after being hacked
sysctl net.inet.ip.fw.one_pass=0
SHUTDOWN
This node shuts down upon receipt of an NGM_SHUTDOWN control message, or when all hooks have been disconnected.
SEE ALSO netgraph(4), ng_ipfw(4)HISTORY
The ng_tcpmss node type was implemented in FreeBSD 6.0.
AUTHORS
Alexey Popov <lollypop@flexuser.ru>
Gleb Smirnoff <glebius@FreeBSD.org>
BUGS
When running on SMP, system statistics may be broken.
BSD June 9, 2005 BSD