02-01-2018
What is it that you don't understand?
Is it the echo $WORT|grep a>/dev/null you don't understand or is it that you don't understand what || does as a command separator?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hello
whats the difference between excuting a shell script as
a)sh myscript.sh
b). ./myscript.sh
i noticed that my shell script works fine when i run it as . ./myscript
.sh but fails when i run it as sh myscript.sh could anybody explain why.
the shell script is very simple
... (9 Replies)
Discussion started by: xiamin
9 Replies
2. Shell Programming and Scripting
I have the following script
awk '$1 ~ /^*+/ {
s += $NF;
m++
}
END {
print NR, m, s
}
and I use it to get results from the following file
A4792 4
COMP9021 5
K9 7
ABC 8
924 1
R2D2 3 (8 Replies)
Discussion started by: sickboy
8 Replies
3. Shell Programming and Scripting
I have a script that has defined a log file like this.
The name of the script is verify.sh
Inside the script there is some thing like this.
LOG=/usr/verify
TDATE=`date "+%m%d%y"$$`
LOGFILE=$LOG.$TDATE.
and inside the script it has been written as
echo "This is to verify" | tee -a... (2 Replies)
Discussion started by: sendhilmani
2 Replies
4. Shell Programming and Scripting
Hi
All,
Can anybody explain what this script is doing?
#!/bin/sh
who | cut -d " " -f1 | sort -u > userlist1
while true ; do
sleep 60
who | cut -d" " -f1 | sort -u >userlist2
for username in `cat userlist1` ; do
if ! grep "^$username$" userlist2 > /dev/null ; then
echo... (0 Replies)
Discussion started by: vishalpatel03
0 Replies
5. Shell Programming and Scripting
Guys,
was wondering what the meaning of the below bit is ?
awk -F ' ' '{print $1 " " $2 ;}' $TEMPFILE | (rm -f $TEMPFILE; sed 's/$/ '"$box"'/g' > $TEMPFILE)
Can anyone explain this in detail? what is the significance of rm -f $TEMPFILE here? What all IO/buffering happens here ?How the... (0 Replies)
Discussion started by: hashin_p
0 Replies
6. Shell Programming and Scripting
Hello,
I have seen this script on this site. I understand most of it. However I am a bit stuck on the part in red. It appears to be expanding
for file in *.zip
do
zipdir=${file%.*}
mkdir $zipdir || echo "unable to create $zipdir"
cp $file $zipdir || echo "unable to copy $file"... (3 Replies)
Discussion started by: jaysunn
3 Replies
7. Shell Programming and Scripting
#script
fileused=test.txt
hostname=test.dis.com
ftp $hostname <<-! > $fileused.err 2>&1
put file.txt /usr/text.txt
bye
!
kindly the above script the one marked as Bold and underlined as the above i am declaring the new variable as filename ,But when i used i had used as $fileused.err... (1 Reply)
Discussion started by: rajar_r
1 Replies
8. Shell Programming and Scripting
The following script will create a directory in a directory and will go on as many times as the number you will give in.
I am trying to find out how it works ... can someone please help me with that?
#!/bin/sh
#create a variable and set it to 1
n=1
#start a loop as... (3 Replies)
Discussion started by: I-1
3 Replies
9. Solaris
Hello Guys,
can someone help explain the script below for me? I will really appreciate it.
vi db_script
#!/bin/sh
echo .cron job run on.`date`> cronjob.txt
df -h >> cronjob.txt
echo welcome to home (2 Replies)
Discussion started by: cjashu
2 Replies
10. Shell Programming and Scripting
Hi
My friend wrote this particular script and won't tell me what it does, and when I run it I don't understand it.
What does the entire script do with specifics please.
Thanks
Bob
#!/bin/bash
current=0
while ; do
if ; then
echo ${current}
current=$((${current}+1))
fi
done (1 Reply)
Discussion started by: shadowknight777
1 Replies
LEARN ABOUT V7
ssl_ctx_new
SSL_CTX_new(3SSL) OpenSSL SSL_CTX_new(3SSL)
NAME
SSL_CTX_new - create a new SSL_CTX object as framework for TLS/SSL enabled functions
SYNOPSIS
#include <openssl/ssl.h>
SSL_CTX *SSL_CTX_new(const SSL_METHOD *method);
DESCRIPTION
SSL_CTX_new() creates a new SSL_CTX object as framework to establish TLS/SSL enabled connections.
NOTES
The SSL_CTX object uses method as connection method. The methods exist in a generic type (for client and server use), a server only type,
and a client only type. method can be of the following types:
SSLv2_method(void), SSLv2_server_method(void), SSLv2_client_method(void)
A TLS/SSL connection established with these methods will only understand the SSLv2 protocol. A client will send out SSLv2 client hello
messages and will also indicate that it only understand SSLv2. A server will only understand SSLv2 client hello messages.
SSLv3_method(void), SSLv3_server_method(void), SSLv3_client_method(void)
A TLS/SSL connection established with these methods will only understand the SSLv3 protocol. A client will send out SSLv3 client hello
messages and will indicate that it only understands SSLv3. A server will only understand SSLv3 client hello messages. This especially
means, that it will not understand SSLv2 client hello messages which are widely used for compatibility reasons, see SSLv23_*_method().
TLSv1_method(void), TLSv1_server_method(void), TLSv1_client_method(void)
A TLS/SSL connection established with these methods will only understand the TLSv1 protocol. A client will send out TLSv1 client hello
messages and will indicate that it only understands TLSv1. A server will only understand TLSv1 client hello messages. This especially
means, that it will not understand SSLv2 client hello messages which are widely used for compatibility reasons, see SSLv23_*_method().
It will also not understand SSLv3 client hello messages.
SSLv23_method(void), SSLv23_server_method(void), SSLv23_client_method(void)
A TLS/SSL connection established with these methods will understand the SSLv2, SSLv3, and TLSv1 protocol. A client will send out SSLv2
client hello messages and will indicate that it also understands SSLv3 and TLSv1. A server will understand SSLv2, SSLv3, and TLSv1
client hello messages. This is the best choice when compatibility is a concern.
The list of protocols available can later be limited using the SSL_OP_NO_SSLv2, SSL_OP_NO_SSLv3, SSL_OP_NO_TLSv1 options of the
SSL_CTX_set_options() or SSL_set_options() functions. Using these options it is possible to choose e.g. SSLv23_server_method() and be able
to negotiate with all possible clients, but to only allow newer protocols like SSLv3 or TLSv1.
SSL_CTX_new() initializes the list of ciphers, the session cache setting, the callbacks, the keys and certificates, and the options to its
default values.
RETURN VALUES
The following return values can occur:
NULL
The creation of a new SSL_CTX object failed. Check the error stack to find out the reason.
Pointer to an SSL_CTX object
The return value points to an allocated SSL_CTX object.
SEE ALSO
SSL_CTX_free(3), SSL_accept(3), ssl(3), SSL_set_connect_state(3)
1.0.1e 2013-02-11 SSL_CTX_new(3SSL)