Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Scripting Question (For Loop) Post 302952985 by shah9250 on Monday 24th of August 2015 06:15:17 PM
Old 08-24-2015
Scripting Question (For Loop)

Hello,

I am practicing creating loops in bash scripting. I am trying to understand the different uses of the for loop. I have a script I made below with some help.

Code:
#/bin/bash

#This script will take the extension of a file in ls command and echo a certain statement based on what type of file it is (.sh , .txt etc)

for filename in $(ls)

	do
	ext=${filename#*.}
		case "$ext" in
		sh) echo "This a script file";;
		txt) echo "This is a text file";;
		*) echo "Never mind, it is none of these 2" ;;
		esac
	done

The objective was to take the output of the "ls" command and classify the files found as either script or text file, based on the extracted characters after the "." in the name. I am wanting to know what does "filename" mean in the for loop. I understand it takes the filenames from the output of "ls" and runs the action, but conceptually what does "filename" represent? I want to find other things I can put instead of "filename" and learn more so I could search the topic, but I don't know what it was called. Thanks!
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

new to shell scripting: whats wrong with my if loop

#!/bin/bash for file in $HOME/*; do if ; then rm -i $file > /dev/null echo "$?" echo "$file has been deleted" fi done Been trying to learn shell scripting for a week or so now, when i run the script it doesnt display an error message, seems like it runs fine, however it doesnt delete... (10 Replies)
Discussion started by: stride6
10 Replies

2. Solaris

Problem in for loop of shell scripting in solaris

Hi below is my script for((i=0;i<=$TOTAL;i++)) do echo "IP's created are $s1.$s2.$s3.$s4" s4=`expr $s4 + 1` done where s1,2,3,4 are input varibles below error occurs while running the script syntax error at lin 11: '(' unexpected ... (12 Replies)
Discussion started by: krevathi1912
12 Replies

3. UNIX for Dummies Questions & Answers

Loop till you find a string in a fine <-- Need Help New to Unix Scripting

Guys - I am new to Unix scripting and am in need for a script that does the following. I have bits and pieces created and tested but i am just having a little difficult time getting it all together. - Loop through till it finds a string in a specific file. Any help is greatly appreciated. ... (1 Reply)
Discussion started by: mrehman
1 Replies

4. Shell Programming and Scripting

while loop in shell scripting

Hi, I have a doubt in usage of while loop in Shell script as Iam new to this. My requirement is that,I have two different directories containing some files which move files to other folder after parsing is done. In my script i wanted to add a while loop which checks for the count in these two... (5 Replies)
Discussion started by: jyothi_wipro
5 Replies

5. Shell Programming and Scripting

BASH loop inside a loop question

Hi all Sorry for the basic question, but i am writing a shell script to get around a slightly flaky binary that ships with one of our servers. This particular utility randomly generates the correct information and could work first time or may work on the 12th or 100th attempt etc !.... (4 Replies)
Discussion started by: rethink
4 Replies

6. Shell Programming and Scripting

Clarification on if loop in Shell scripting

Hi, I'm using Ksh and I'm seeing some of code in my programme as given below. Could you please let me know whats is this meeaing ? (I'm new to this unix) grep "1034" /u/kkk/bin/temp5.lst|cut -c1-2 >/u/kkk/bin/temp6.lst if then echo "" ... (2 Replies)
Discussion started by: shyamu544
2 Replies

7. Shell Programming and Scripting

while loop shell scripting help

hi i was wondering if someone can help me with a while loop..i have been looking at this for hours and dont no wut to do.. i have to make a menu style.. to have a beeter understanding i have linked a photo at the bottom... http://www.mypicx.com/uploadimg/772204432_08022011_1.pngand then ... (1 Reply)
Discussion started by: beerpong1
1 Replies

8. Homework & Coursework Questions

shell scripting while loop lab 15 help

hi.. this is shell scripting lab15.sh i dont understand this lab i am at the screen shot part. i was wondering if someone can take a quick look at this lab i have linked the doc below. i dont know where to start i have did the Required Errorlevels Errorlevel # but dont... (1 Reply)
Discussion started by: beerpong1
1 Replies

9. Shell Programming and Scripting

For loop scripting

Hi there again, I need some help in figuring out how to execute a for loop command to come up with my desired output. I have individual monthly files and a single file containing a list of location data for 1 year. I want to do a loop where for each monthly file say Jan.hdf, if will read the... (8 Replies)
Discussion started by: ida1215
8 Replies

10. Shell Programming and Scripting

Expect Scripting Loop Argument Desperately Needed!

I am trying to create an Expect script that does the following: 1) Telnets to an IP address and logs in with user ID and Password 2) Issue a CLI command to the server that will output data of which I am particularly interested in a DS1 clock 'Slips' value. I want to be able to keep issuing... (0 Replies)
Discussion started by: dwightlaidler
0 Replies
JAVA2HTML(1)						      General Commands Manual						      JAVA2HTML(1)

NAME
java2html - generates highlighted html-files from Java or C++ source SYNOPSIS
java2html [options] [filename...] DESCRIPTION
This manual page documents how to use java2html. If no arguments are given on the command line of java2html, it reads from stdin and writes to stdout. If invoked with filenames as arguments java2html will write it's output into new files. Names of output files are generated by appending ".html" to the corresponding input filename. Installing as a CGI program java2html can be installed as a CGI program and convert source files on the fly. In order to set this up for apache the webmaster has to add the two lines AddType text/x-java .java Action text/x-java /cgi-bin/java2html to the webserver configuration file. java2html depends on the webserver properly setting environment variable PATH_TRANSLATED to the path- name of the source file. If java2html has been compiled with option -DCOMPRESSION=1 then it will invoke gzip to compress the generated HTML before sending it to the requesting browser. Of course java2html takes care to check if the browser accepts gzip encoding. OPTIONS -- Interpret all following arguments on the command line as filenames. This is useful, if you want to convert files beginning with a '-'. -b filename Insert the file 'filename' after converted data and before HTML footer. See also the -s option. -c Turns off CGI-script detection and HTTP header generation. This is needed to use java2html as a subcommand in another CGI script. -h filename Insert the file 'filename' after the HTML headers and before the converted data. See also the -s option. -i Generate an index only. This will generate a list of references (HREF's) to the labels that java2html creates for your source file. The references are created as list items (<li>) in an HTML list. Each line has the form <li><a href="#name">prototype()</a></li> so they can be used directly as an index list, or further parsed by another script. If you want the index at the top of the source file, you will need a wrapper script like this one: #! /bin/sh echo "Content-type: text/html" echo "" echo "<html>" echo "<head><title>$PATH_TRANSLATED</title>" echo "<meta name="generator"" echo "content="`java2html -V`">" echo "</head>" echo "<body>" echo "<h1>Source of $PATH_TRANSLATED</h1>" echo "<ul>Structures and functions" cat $PATH_TRANSLATED | java2html -isc echo "</ul>" echo "<hr></hr>" cat $PATH_TRANSLATED | java2html -sc echo "</body></html>" exit -n Number lines and label them with 'line' followed by the line number. Empty lines get no label, but the linecounter will count them nevertheless. With this feature you can refer to special lines of code from other parts of the generated file or from external files with a line like this: <A HREF="foo.java.html#line301">Go to line 301</A> -s With this option you can suppress the generation of HTML headers. This is especially useful together with options -b file and -h file. -t title Set the title to 'title'. The default is the filename you converted or "stdin" if reading from stdin. This option is only used if -s is not set. -u Print usage information. -w width sets the WIDTH attribute for HTML tag <PRE>. If this option is not used a default of 80 is assumed. (Currently most browsers are ignoring this attribute). -V reports the version number of java2html. EXIT STATUS
java2html returns 0 on success, 1 if input files are not existing/readable, 2 if output files are not creatable/writable, 3 if invoked with illegal options and 4 if gzip cannot be invoked. AUTHORS
Florian Schintke <schintke@cs.tu-berlin.de> Martin Kammerhofer <mkamm@gmx.net> wrote the CGI feature. Rob Ewan <rob@ewan.com> wrote the indexing feature. SEE ALSO
c2html(1), pas2html(1), perl2html(1). JAVA2HTML(1)
All times are GMT -4. The time now is 12:42 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy