Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Help Needed on shell script
Top Forums Shell Programming and Scripting Help Needed on shell script Post 302535971 by Scott on Sunday 3rd of July 2011 01:14:59 PM
Old 07-03-2011
[ is synonymous with test - usually a soft, or a hard link, or internal command:
Code:
$ ll /bin/[
-r-xr-xr-x  2 root  wheel  63184 18 May  2009 /bin/[

$ ll /bin/test
-r-xr-xr-x  2 root  wheel  63184 18 May  2009 /bin/test

As such, you need a space after it. ] is added for balance - you need a space before that, too.

Code:
while [ $# -gt 0 ]
do
  echo Moving file "$1"
  shift
done
exit 0

$0 is the script name... $1 will be the first argument - each time - after shift, what was $2 will be $1. You should quote arguments to protect against spaces, etc. In your echo example, not an issue, but if you plan to mv the file, it's good practice to quote variables.

There's no need to add semi-colons after commands if it's the last command on the line.
This User Gave Thanks to Scott For This Post:
Anand86
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help needed in Shell Script

Hi I have the following columns in my input file which is sorted on ColA colA colB colC colD colE The data is such that for a single colA it can have multiple values of other columns, for eg the data can be colA colB colC ... (1 Reply)
Discussion started by: nvuradi
1 Replies

2. UNIX for Dummies Questions & Answers

shell script Help Needed!!

Hi guys-- Here is the interesting problem.. I have a folder, which has a couple of xml files like ( could be anywhere under the sub folders) ABCD_NA.xml XAYSGD_SC.xml CBV_CA.xml etc I need to peek in each of these xml's and see that the pattern before the _ and after the _ are there... (0 Replies)
Discussion started by: smallu
0 Replies

3. Shell Programming and Scripting

Help needed for Shell Script.....

Hello Friends, Can you pls advice me on the following requirement: What we'd like to achieve is the following: - having a password.properties file which contains some passwords, e.g. BOT_PASSWORD=dog.name - in the configuration file, insert as the password value something like... (0 Replies)
Discussion started by: pulkit
0 Replies

4. Shell Programming and Scripting

help needed for a shell script

i need to search the starting line example we have -sh shl-js-gd i need to search only starting -sh not the other i have used cmd cat filename | grep '-' but it will check for complete - in the file please help me to search only starting - thank u revenna (0 Replies)
Discussion started by: revenna
0 Replies

5. Shell Programming and Scripting

Help with Shell Script Needed

Hi all, I'm a newbie. I'm thinking of making a shell script which will list a directory for *.csv files and merge all the files into a single file called data.csv. However, i have no idea how to. What i do currently is to manually issue the following command to merge multiple CSV files into... (1 Reply)
Discussion started by: infinity2030
1 Replies

6. Shell Programming and Scripting

Help needed in shell script

i am trying to read an existing xml file and find an element in the xml file of following format <home.dir value="/local/mnt/homes/docs"/> I am trying to take a command line argument to my shell script whose value should replace /local/mnt/homes/docs in xml document. Can you please point me how... (3 Replies)
Discussion started by: viswas
3 Replies

7. Shell Programming and Scripting

Help needed with Shell script

Hi all, I need to modify the below highlighted piece to perform the below task. Please let me know as i am not able to figure out a way to do this. || FILENAME=$(date +"$FILENAME") if ; then do_log FATAL "FILENAME needs to be set if SWITCH2=0" exit 1 fi... (3 Replies)
Discussion started by: stunnerz_84
3 Replies

8. UNIX for Dummies Questions & Answers

Help needed with Shell script

Hi I want a script which should basically do 1. If the size of the file is 0kb, send email to some list od ppl 2. if the size of the file is other than 0kb send email to someother list... Pls help (2 Replies)
Discussion started by: win4luv
2 Replies

9. Shell Programming and Scripting

Help needed with shell script

Hi, I have trouble building the logic for the following, could anyone please help me out with this: Im working on a wrapper script to check for input files (in a specific directory) and pass the input files along with the options as parameters to the main script.The options vary depending ... (2 Replies)
Discussion started by: stunnerz_84
2 Replies

10. Shell Programming and Scripting

Shell script - help needed

I want to take out the Z1 value from the lscfg outpu and use the below command to get it lscfg -vl hdisk0 | grep "Device Specific.(Z1)" | awk -F. '{print $NF}' # lscfg -vpl hdisk0 . . Device Specific.(Z0)........0000063268181002 Device Specific.(Z1)........020064a . And it works,... (2 Replies)
Discussion started by: moorthikv
2 Replies

LEARN ABOUT CENTOS

grub-render-label

GRUB-RENDER-LABEL(1)                                               User Commands                                              GRUB-RENDER-LABEL(1)

NAME

       grub-render-label - generate a .disk_label for Apple Macs.

SYNOPSIS

       grub-render-label [OPTION...] [OPTIONS]

DESCRIPTION

       Render Apple .disk_label.

       -b, --bgcolor=COLOR
              use COLOR for background

       -c, --color=COLOR
              use COLOR for text

       -f, --font=FILE
              use FILE as font (PF2).

       -i, --input=FILE
              read text from FILE.

       -o, --output=FILE
              set output filename. Default is STDOUT

       -t, --text=STRING
              set the label to render

       -v, --verbose
              print verbose messages.

       -?, --help
              give this help list

       --usage
              give a short usage message

       -V, --version
              print program version

       Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

REPORTING BUGS

       Report bugs to <bug-grub@gnu.org>.

SEE ALSO

       The  full  documentation  for grub-render-label is maintained as a Texinfo manual.  If the info and grub-render-label programs are properly
       installed at your site, the command

              info grub-render-label

       should give you access to the complete manual.

grub-render-label (GRUB) 2.02-2ubuntu8.3                             July 2018                                                GRUB-RENDER-LABEL(1)
All times are GMT -4. The time now is 02:12 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy