Hi
I am very new to shell scripting and have written a script (below).
However the directory I am searching will contain a file with a .trn extension each day which I want to eliminate.
Each day the file extension overnight will change to trx, if this fails I want to know.
Basically what I... (2 Replies)
Dear All,
can anybody help me out in generating a command that can be used to view the last line of multiples files.
e.g:
file 1 contains 100 records
file 2 contains 200 records
file 3 contails 300 records
now i need a command that can be used to display the last line of each... (7 Replies)
Hi ,
I want to rename multiple files with their first line bar the first character + the extension .qual. For the example below the filename should read
7180000000987.qual. I have trawled through different threads for 2 days and I don't seem to find anything I can adopt for this task :confused:
... (7 Replies)
Hi,
I have a directory full of *.txt files. I would like to print the last line of every file to screen.
I know you can use FNR for printing the first line of each file, but how do I access the last line of each file?
This code doesn't work, it only prints the last line of the last file:BEGIN... (5 Replies)
Hi guys, I'm try making to script for eliminate files rlogins.
path1='/home/*'
for i in `cat /etc/passwd |awk -F: '{print $6}'`; do
if test "$i" = "$path1"; then
echo $i
cd $i
if ; then
echo "$i/.rhosts detectado"|mail -s "rhosts" root
... (14 Replies)
Hi everyone,
I've a requirement to modify an existing line which is common to multiple files. I need to replace that existing line with a new line. I've almost 900 ksh files to edit in the similar fashion in the same directory.
Example:
Existing Line: . $HOME/.eff.env (notice the "." at the... (3 Replies)
HI All,
I want to know if it is possible to print the same message but into 2 different files in the same command?
Something like
.
..
...
echo "Text" >> file1 && file2
this is because i creating a script which i use a log but i don't want to duplicate lines of command just to... (5 Replies)
I am looking for help in processing of those options: '-n' or '-p'
I understand what they do and how to use them.
But, I would like to use them with more than one file (and without any shell-loop; loading the 'perl' once.)
I did try it and -n works on 2 files.
Question is:
- is it possible to... (6 Replies)
Discussion started by: alex_5161
6 Replies
LEARN ABOUT DEBIAN
shasum
SHASUM(1) Perl Programmers Reference Guide SHASUM(1)NAME
shasum - Print or Check SHA Checksums
SYNOPSIS
Usage: shasum [OPTION]... [FILE]...
Print or check SHA checksums.
With no FILE, or when FILE is -, read standard input.
-a, --algorithm 1 (default), 224, 256, 384, 512, 512224, 512256
-b, --binary read in binary mode
-c, --check read SHA sums from the FILEs and check them
-p, --portable read files in portable mode
produces same digest on Windows/Unix/Mac
-t, --text read in text mode (default)
The following two options are useful only when verifying checksums:
-s, --status don't output anything, status code shows success
-w, --warn warn about improperly formatted checksum lines
-h, --help display this help and exit
-v, --version output version information and exit
When verifying SHA-512/224 or SHA-512/256 checksums, indicate the
algorithm explicitly using the -a option, e.g.
shasum -a 512224 -c checksumfile
The sums are computed as described in FIPS-180-4. When checking, the
input should be a former output of this program. The default mode is to
print a line with checksum, a character indicating type (`*' for binary,
` ' for text, `?' for portable), and name for each FILE.
Report shasum bugs to mshelor@cpan.org
DESCRIPTION
Running shasum is often the quickest way to compute SHA message digests. The user simply feeds data to the script through files or
standard input, and then collects the results from standard output.
The following command shows how easy it is to compute digests for typical inputs such as the NIST test vector "abc":
perl -e "print qq(abc)" | shasum
Or, if you want to use SHA-256 instead of the default SHA-1, simply say:
perl -e "print qq(abc)" | shasum -a 256
Since shasum mimics the behavior of the combined GNU sha1sum, sha224sum, sha256sum, sha384sum, and sha512sum programs, you can install this
script as a convenient drop-in replacement.
AUTHOR
Copyright (c) 2003-2011 Mark Shelor <mshelor@cpan.org>.
SEE ALSO
shasum is implemented using the Perl module Digest::SHA or Digest::SHA::PurePerl.
perl v5.14.2 2014-09-30 SHASUM(1)