Is there an option, for cat, head, tail, or is there any way, to display a file from last line to first? For example, my file
looks like this:
aaaa
bbbb
cccc
eeee
and I would like to print or display it like this:
eeee
cccc
bbbb
aaaa
thanks (5 Replies)
Hi, excuse me for my poor english.
My problem is that:
I have a File
i want to add to each line of that file two strings: one at the beginning of the line, one at the ending.
string1="abcd"
string2="efgh"
i want $string1 content $string2 for each line.
Is that possible? (3 Replies)
How can I specify special meaning characters like ^ or $ inside a regex range. e.g
Suppose I want to search for a string that either starts with '|' character or begins with start-of-line character.
I tried the following but it does not work:
sed 's/\(\)/<do something here>/g' file1
... (3 Replies)
Well here goes:
I tried to write a batch file that adds a specific fixed text to each line of an already existing text file.
for the adding text infront of each line I tried this:
for /F "delims=" %%j in (list.txt) do echo.STARTTEXT\%%j >> list.txt
for adding text after each line I... (0 Replies)
How would you do vim copy line and paste at the beginning, middle, and end of another line. I know yy copies the whole line and p pastes the whole line, but on its own separate line. Sometimes I would like to copy a line to the beginning, middle, or end of another line. I would think this would be... (3 Replies)
how to add value/word at the beginning of each line in a file ?
i have file number.txt and the output is below
1000
1001
1002
1003
1004
i want to add 000 at the beginning of each line, desire output is below
0001000
0001001
0001002
0001003
0001004
and so on
please advise how... (5 Replies)
My file has the entries like below...
/dev/sds
/dev/sdak
/dev/sdbc
/dev/sdbu
I want to make the file like below
echo 1 > /sys/block/sds/device/rescan
echo 1 > /sys/block/sdak/device/rescan
echo 1 > /sys/block/sdbc/device/rescan
echo 1 > /sys/block/sdbu/device/rescan (2 Replies)
Discussion started by: saravanapandi
2 Replies
LEARN ABOUT MOJAVE
curlopt_pinnedpublickey
CURLOPT_PINNEDPUBLICKEY(3) curl_easy_setopt options CURLOPT_PINNEDPUBLICKEY(3)NAME
CURLOPT_PINNEDPUBLICKEY - set pinned public key
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PINNEDPUBLICKEY, char *pinnedpubkey);
DESCRIPTION
Pass a pointer to a zero terminated string as parameter. The string can be the file name of your pinned public key. The file format
expected is "PEM" or "DER". The string can also be any number of base64 encoded sha256 hashes preceded by "sha256//" and separated by ";"
When negotiating a TLS or SSL connection, the server sends a certificate indicating its identity. A public key is extracted from this cer-
tificate and if it does not exactly match the public key provided to this option, curl will abort the connection before sending or receiv-
ing any data.
On mismatch, CURLE_SSL_PINNEDPUBKEYNOTMATCH is returned.
The application does not have to keep the string around after setting this option.
DEFAULT
NULL
PROTOCOLS
All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
curl_easy_setopt(curl, CURLOPT_PINNEDPUBLICKEY, "/etc/publickey.der");
/* OR
curl_easy_setopt(curl, CURLOPT_PINNEDPUBLICKEY, "sha256//YhKJKSzoTt2b5FP18fvpHo7fJYqQCjAa3HWY3tvRMwE=;sha256//t62CeU2tQiqkexU74Gxa2eg7fRbEgoChTociMee9wno=");
*/
/* Perform the request */
curl_easy_perform(curl);
}
PUBLIC KEY EXTRACTION
If you do not have the server's public key file you can extract it from the server's certificate.
# retrieve the server's certificate if you don't already have it
#
# be sure to examine the certificate to see if it is what you expected
#
# Windows-specific:
# - Use NUL instead of /dev/null.
# - OpenSSL may wait for input instead of disconnecting. Hit enter.
# - If you don't have sed, then just copy the certificate into a file:
# Lines from -----BEGIN CERTIFICATE----- to -----END CERTIFICATE-----.
#
openssl s_client -servername www.example.com -connect www.example.com:443 < /dev/null | sed -n "/-----BEGIN/,/-----END/p" > www.example.com.pem
# extract public key in pem format from certificate
openssl x509 -in www.example.com.pem -pubkey -noout > www.example.com.pubkey.pem
# convert public key from pem to der
openssl asn1parse -noout -inform pem -in www.example.com.pubkey.pem -out www.example.com.pubkey.der
# sha256 hash and base64 encode der to string for use
openssl dgst -sha256 -binary www.example.com.pubkey.der | openssl base64
The public key in PEM format contains a header, base64 data and a footer:
-----BEGIN PUBLIC KEY-----
[BASE 64 DATA]
-----END PUBLIC KEY-----
AVAILABILITY
PEM/DER support:
7.39.0: OpenSSL, GnuTLS and GSKit
7.43.0: NSS and wolfSSL/CyaSSL
7.47.0: mbedtls
7.49.0: PolarSSL
sha256 support:
7.44.0: OpenSSL, GnuTLS, NSS and wolfSSL/CyaSSL
7.47.0: mbedtls
7.49.0: PolarSSL
Other SSL backends not supported.
RETURN VALUE
Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.
SEE ALSO CURLOPT_SSL_VERIFYPEER(3), CURLOPT_SSL_VERIFYHOST(3), CURLOPT_CAINFO(3), CURLOPT_CAPATH(3),
libcurl 7.54.0 December 21, 2016 CURLOPT_PINNEDPUBLICKEY(3)