delete some columns


 
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Old 05-16-2007
Quote:
Originally Posted by su_in99
I've got a data file like the following format.

196004010000 196004020000 8192 24 ueaag 98.793 18.750 20 ---- - 36 23 9999 314.161773681641
196004020000 196004030000 8192 24 ueaag 98.793 18.750 20 ---- - 36 23 9999 314.71533203125
196004030000 196004040000 8192 24 ueaag 98.793 18.750 20 ---- - 36 23 9999 315.208740234375

I need the first and last column as

196004010000 314.161773681641
196004020000 314.71533203125
196004030000 315.208740234375

Would you have any idea to do this job? I'd be grateful with any help.

Many thanks,
su_in99
Code:
awk ' { print $1,$NF } ' filename

 
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OPENSSL_SEAL(3) 							 1							   OPENSSL_SEAL(3)

openssl_seal - Seal (encrypt) data

SYNOPSIS
int openssl_seal (string $data, string &$sealed_data, array &$env_keys, array $pub_key_ids, [string $method]) DESCRIPTION
openssl_seal(3) seals (encrypts) $data by using RC4 with a randomly generated secret key. The key is encrypted with each of the public keys associated with the identifiers in $pub_key_ids and each encrypted key is returned in $env_keys. This means that one can send sealed data to multiple recipients (provided one has obtained their public keys). Each recipient must receive both the sealed data and the envelope key that was encrypted with the recipient's public key. PARAMETERS
o $data - o $sealed_data - o $env_keys - o $pub_key_ids - RETURN VALUES
Returns the length of the sealed data on success, or FALSE on error. If successful the sealed data is returned in $sealed_data, and the envelope keys in $env_keys. EXAMPLES
Example #1 openssl_seal(3) example <?php // $data is assumed to contain the data to be sealed // fetch public keys for our recipients, and ready them $fp = fopen("/src/openssl-0.9.6/demos/maurice/cert.pem", "r"); $cert = fread($fp, 8192); fclose($fp); $pk1 = openssl_get_publickey($cert); // Repeat for second recipient $fp = fopen("/src/openssl-0.9.6/demos/sign/cert.pem", "r"); $cert = fread($fp, 8192); fclose($fp); $pk2 = openssl_get_publickey($cert); // seal message, only owners of $pk1 and $pk2 can decrypt $sealed with keys // $ekeys[0] and $ekeys[1] respectively. openssl_seal($data, $sealed, $ekeys, array($pk1, $pk2)); // free the keys from memory openssl_free_key($pk1); openssl_free_key($pk2); ?> SEE ALSO
openssl_open(3). PHP Documentation Group OPENSSL_SEAL(3)