Arguments are the things you feed into a program, like so:
Code:
./myprogram 1 2 3
argument 1 would be 1, and so forth.
'echo' doesn't actually understand what * means. The shell translates * into a list of files for you, before the program is run. So you can use * anywhere a list of file arguments makes sense!
ls on the other hand, reads filenames by itself. It also has options to sort them (-t means sort by time ), and print extended information ( -l ) which * cannot do.
I'm sure this is an easy one but I can't seem to get it working. Given the following:
for oldName in `ls *.JPG` ;do
newName=<confusion here. how to make sed perform 's/.JPG/_thumb.JPG/g' operation on $oldName>
done
Could someone show me what I'm doing wrong?
Thanks
Ken (1 Reply)
Hi all,
I have a directory have all of the .stat and .dat file :
they are is a pipe separate flat file.
Example:
log-20061202.stat contain 1st line and last line of log-20061202.dat with record count of that day.
Example:
Total record = 240
Tom|02-12-2006|1600 W.Santa... (18 Replies)
Basically I have a shell script and i want to search the computer for a folder and if that folder exists i want to take some action. Not sure exactly how to do this most efficiently.
Not very experienced....any help would be appreciated. (1 Reply)
Hello everybody...
I'm a Unix newbie and i just got this task at work to figure out what's wrong with a daily script my team is using.
The idea behind the script is that it takes the day before in a yyyymmdd format, find files with that date in a specific directory and executes an (irrelavant)... (4 Replies)
Q1>How do i read and write to file in shell script. Here is what i want let's assume the filename as "file1"
Read file1
Check the content of file1 which can be either "0" or "1"
if(content == 0)
{
execute a command
}
flush file1(remove all contents in it)
write "1" in to... (5 Replies)
My problem looks like it should have a simple solution but it seems that after many days of research I cannot find a good solution. What I have is an input file that contains lines of information. What I need is to extract specific information from that file. What I know is that somewhere in the... (2 Replies)
script is:
dirname= "$(date +%b%d)_$(date +%H%M)"
mkdir $dirname
should create a directory named Nov4_
Instead I get the following returned:
root@dchs-pint-001:/=>./test1
./test1: Nov04_0736: not found.
Usage: mkdir Directory ...
root@dchs-pint-001:/=>
TOO easy, but what am I... (2 Replies)
Can someone help me write this shell script?
I am completely new to shell and as a fun task my uncle has challenged me a problem (out of all other people). Basically, all he wants me to do is to create backup file in a folder that is named “disables.”
This is what he said: create a shell script... (0 Replies)
Hello all,
I want to write a shell script to list the contents of a directory and number them and write them to a file.
For example, if I have a directory temp and the contents of the directory are alpha, beta and gamma. I want to write these filenames to a file "test" in a numbered manner.
... (7 Replies)
Hi,
I am totally a newbie to any programming languages and I just started an entry level job in an IT company. One of my recent tasks is to create a script that is able to show the log file of linux service (i.e. ntpd service)
lets say, if I run my script ./test.sh, the output should be... (3 Replies)
Discussion started by: xiaogeji
3 Replies
LEARN ABOUT DEBIAN
pppoe-setup
PPPOE-SETUP(8) System Manager's Manual PPPOE-SETUP(8)NAME
pppoe-setup - Shell script to configure Roaring Penguin PPPoE client
SYNOPSIS
pppoe-setup
DESCRIPTION
pppoe-setup is a shell script which prompts you for various pieces of information and sets up an /etc/ppp/pppoe.conf configuration script
for the pppoe-start, pppoe-stop and pppoe-connect scripts.
AUTHOR
pppoe-setup was written by David F. Skoll <dfs@roaringpenguin.com>.
The pppoe home page is http://www.roaringpenguin.com/pppoe/.
SEE ALSO pppoe(8), pppoe-start(8), pppoe-stop(8), pppoe-connect(8), pppd(8), pppoe.conf(5), pppoe-status(8), pppoe-sniff(8), pppoe-relay(8), pppoe-
server(8)4th Berkeley Distribution 21 February 2000 PPPOE-SETUP(8)