Sponsored Content
Top Forums UNIX for Dummies Questions & Answers is "!" also used for documentation purpose? Post 302581927 by methyl on Wednesday 14th of December 2011 11:28:26 AM
Old 12-14-2011
If I understand you correctly. There is no multi-line documentation symbol in unix Shell (unlike some programming languages). Anything from a hash sign onwards on the same line is comment.

Code:
#The documentation sign in unix Shell script is a hash
# Like this
# And this
#
ls -lad    # This command produces a directory listing
#
# The next line produces a directory listing
ls -lad

This User Gave Thanks to methyl For This Post:
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`"

Hi Friends, Can any of you explain me about the below line of code? mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'` Im not able to understand, what exactly it is doing :confused: Any help would be useful for me. Lokesha (4 Replies)
Discussion started by: Lokesha
4 Replies

2. Shell Programming and Scripting

cat $como_file | awk /^~/'{print $1","$2","$3","$4}' | sed -e 's/~//g'

hi All, cat file_name | awk /^~/'{print $1","$2","$3","$4}' | sed -e 's/~//g' Can this be done by using sed or awk alone (4 Replies)
Discussion started by: harshakusam
4 Replies

3. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

4. Shell Programming and Scripting

Purpose of "read" and "$END$" in ksh ?

Hi, Could anyone please shed some light on the following script lines and what is it doing as it was written by an ex-administrator? cat $AMS/version|read a b verno d DBVer=$(/usr/bin/printf "%7s" $verno) I checked that the cat $AMS/version command returns following output: ... (10 Replies)
Discussion started by: dbadmin100
10 Replies

5. Shell Programming and Scripting

how to use "cut" or "awk" or "sed" to remove a string

logs: "/home/abc/public_html/index.php" "/home/abc/public_html/index.php" "/home/xyz/public_html/index.php" "/home/xyz/public_html/index.php" "/home/xyz/public_html/index.php" how to use "cut" or "awk" or "sed" to get the following result: abc abc xyz xyz xyz (8 Replies)
Discussion started by: timmywong
8 Replies

6. Shell Programming and Scripting

What is the purpose of "-z" string checking?

what is the purpose of below specially "-z" string checking, how? pid=`ps ax |grep java` if (3 Replies)
Discussion started by: learnbash
3 Replies

7. UNIX for Dummies Questions & Answers

Using "mailx" command to read "to" and "cc" email addreses from input file

How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address and column 3 contains “cc” e-mail address to include with same email. Sample input file, email.txt Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies

8. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies

9. AIX

Apache 2.4 directory cannot display "Last modified" "Size" "Description"

Hi 2 all, i have had AIX 7.2 :/# /usr/IBMAHS/bin/apachectl -v Server version: Apache/2.4.12 (Unix) Server built: May 25 2015 04:58:27 :/#:/# /usr/IBMAHS/bin/apachectl -M Loaded Modules: core_module (static) so_module (static) http_module (static) mpm_worker_module (static) ... (3 Replies)
Discussion started by: penchev
3 Replies
File::Listing(3)					User Contributed Perl Documentation					  File::Listing(3)

NAME
File::Listing - parse directory listing SYNOPSIS
use File::Listing qw(parse_dir); $ENV{LANG} = "C"; # dates in non-English locales not supported for (parse_dir(`ls -l`)) { ($name, $type, $size, $mtime, $mode) = @$_; next if $type ne 'f'; # plain file #... } # directory listing can also be read from a file open(LISTING, "zcat ls-lR.gz|"); $dir = parse_dir(*LISTING, '+0000'); DESCRIPTION
This module exports a single function called parse_dir(), which can be used to parse directory listings. The first parameter to parse_dir() is the directory listing to parse. It can be a scalar, a reference to an array of directory lines or a glob representing a filehandle to read the directory listing from. The second parameter is the time zone to use when parsing time stamps in the listing. If this value is undefined, then the local time zone is assumed. The third parameter is the type of listing to assume. Currently supported formats are 'unix', 'apache' and 'dosftp'. The default value is 'unix'. Ideally, the listing type should be determined automatically. The fourth parameter specifies how unparseable lines should be treated. Values can be 'ignore', 'warn' or a code reference. Warn means that the perl warn() function will be called. If a code reference is passed, then this routine will be called and the return value from it will be incorporated in the listing. The default is 'ignore'. Only the first parameter is mandatory. The return value from parse_dir() is a list of directory entries. In a scalar context the return value is a reference to the list. The directory entries are represented by an array consisting of [ $filename, $filetype, $filesize, $filetime, $filemode ]. The $filetype value is one of the letters 'f', 'd', 'l' or '?'. The $filetime value is the seconds since Jan 1, 1970. The $filemode is a bitmask like the mode returned by stat(). COPYRIGHT
Copyright 1996-2010, Gisle Aas Based on lsparse.pl (from Lee McLoughlin's ftp mirror package) and Net::FTP's parse_dir (Graham Barr). This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.18.2 2012-02-15 File::Listing(3)
All times are GMT -4. The time now is 04:46 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy