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Top Forums Shell Programming and Scripting Need help to eliminate the records Post 302782211 by Corona688 on Monday 18th of March 2013 11:46:24 AM
Old 03-18-2013
Quote:
Originally Posted by bbc17484
Hi,

I tried the above command, But its not working

Code:
awk 'FNR==3' test1.dat > test1.dat

After executing above code, I didnt get any records into the test1.dat file
You cannot redirect to the same file you're reading from.

That will truncate the file before awk runs and ruin your input as well as your output.
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GPG-ZIP(1)							 GNU Privacy Guard							GPG-ZIP(1)

NAME
gpg-zip - Encrypt or sign files into an archive SYNOPSIS
gpg-zip [options] filename1 [ filename2, ... ] directory1 [ directory2, ... ] DESCRIPTION
gpg-zip encrypts or signs files into an archive. It is an gpg-ized tar using the same format as used by PGP's PGP Zip. OPTIONS
gpg-zip understands these options: --encrypt -e Encrypt data. This option may be combined with --symmetric (for output that may be decrypted via a secret key or a passphrase). --decrypt -d Decrypt data. --symmetric -c Encrypt with a symmetric cipher using a passphrase. The default symmetric cipher used is CAST5, but may be chosen with the --cipher-algo option to gpg. --sign -s Make a signature. See gpg. --recipient user -r user Encrypt for user id user. See gpg. --local-user user -u user Use user as the key to sign with. See gpg. --list-archive List the contents of the specified archive. --output file -o file Write output to specified file file. --gpg gpgcmd Use the specified command gpgcmd instead of gpg. --gpg-args args Pass the specified options to gpg. --tar tarcmd Use the specified command tarcmd instead of tar. --tar-args args Pass the specified options to tar. --version Print version of the program and exit. --help Display a brief help page and exit. EXAMPLES
Encrypt the contents of directory 'mydocs' for user Bob to file 'test1': gpg-zip --encrypt --output test1 --gpg-args -r Bob mydocs List the contents of archive 'test1': gpg-zip --list-archive test1 DIAGNOSTICS
The program returns 0 if everything was fine, 1 otherwise. SEE ALSO
gpg(1), tar(1), The full documentation for this tool is maintained as a Texinfo manual. If GnuPG and the info program are properly installed at your site, the command info gnupg should give you access to the complete manual including a menu structure and an index. GnuPG 2.0.15 2010-07-05 GPG-ZIP(1)
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