Bash Shell loop - Help ! Post: 302949739

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

bash and ksh: variable lost in loop in bash?

Hi, I use AIX (ksh) and Linux (bash) servers. I'm trying to do scripts to will run in both ksh and bash, and most of the time it works. But this time I don't get it in bash (I'm more familar in ksh). The goal of my script if to read a "config file" (like "ini" file), and make various report....

2. Shell Programming and Scripting

problem with while loop in BASH shell

I have file named script1 as follows: #!/bin/bash count="0" echo "hello" echo "$count" while do echo "$count" count=`expr $count + 1` done ----------- when I run it, I get ./script1: line 9: syntax error near unexpected token `done' ./script1: line 9: `done' I...

3. Shell Programming and Scripting

if loop not working in BASH shell

i have this code for a simple if loop: #!/bin/bash array="1 2 3 4 5" array2="5 6 7 8 9" if } -gt ${array} ]; then echo "${array2} is greater than ${array}!!" fi the error is ./script8: line 9: [: too many arguments ./script8: line 9: [: too many arguments ./script8: line 9: [:...

4. UNIX for Dummies Questions & Answers

Anyone know?: How the 'for'-loop could stop working in interactive bash shell?!

It is happening with my sessions already second time: a 'for'-loop for some reason stop to work as expected. That means or it is looping without exitting, or it is not loop even once. Here example of my try when it is not processing even one loop. You can see, I start new subshell and...

5. Shell Programming and Scripting

How to use while loop in bash shell to read a file with 4 lines of gap

Hi , I am currently using the while loop in bash shell, as follows. while read line do echo $line done < file.txt However, i want to use the while loop on file.txt, which will read the file with 4 lines of gap. Ex- if file.txt is a file of 100 lines, then i want to use the loop such...

6. Shell Programming and Scripting

Using variables created sequentially in a loop while still inside of the loop [bash]

I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends. As an example I've written a script called question (The fist command is to show what is the contents of the...

7. 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 !....

8. Shell Programming and Scripting

Confusion about FOR LOOP syntax between Bourne and BASH shell. Please see.

for (( i=1; i<=3; i++ )); do for (( j=1; j<=3; j++ )); do for (( k=1; k<=3; k++ )); do echo $i$j$k done done done Will the above code work on a BOURNE shell? As far as my understanding is, if I am writing the above code in a file..say lol.sh and then running it through the terminal using...

9. Shell Programming and Scripting

"Command not found" doing a while loop in bash/shell

i=0 numberofproducts=${#urls} #gets number of entries in array called "urls" numberofproductsminusone=`expr $numberofproducts - 1` #-subtract by one while do wget ${urls} i=$(( $i + 1 )) sleep 10 done I'm getting an error ./scrape: line 22: [0: command not found that...

10. UNIX for Dummies Questions & Answers

For loop in bash shell

Hi, I am using a for loop to manipulate files data_1.txt through data_100.txt. The for-loop is set up like this: for i in {1..100}; do cut -f1 data_$i.txt > output$i.txt I get the following error message when I run the code: cannot open `data.txt' for reading: No such file or directory...

LEARN ABOUT DEBIAN

cg

CG(1)																	     CG(1)

NAME

       cg - Recursively grep for a pattern and store it.

SYNOPSIS

       cg [ -l ] | [ [ -i ] pattern [ files ] ]

DESCRIPTION

       cg  does  a search though text files (usually source code) recursively for a pattern, storing matches and displaying the output in a human-
       readable fashion.  It is intended to give some of the functionaly of AT&T's cscope(1) tool, with the advantages of simplicity and not being
       language-specific.  The script will colorize output if configured as such.

       It  is typically run with a Perl regular expression to search for.  The search can be made case insensitive by using the -i option.  A list
       of files may also be specified with an additional argument after the pattern.  Put the files pattern in quotes to make  it  be  matched	by
       Perl  rather  than  by  the shell.  Running the script with no arguments will recall the results of the previous search.  After the search,
       entries found can be edited using the vg(1) script.  The -l option shows the last log made.

SOME EXAMPLES

       cg - alone recalls the previous search results.

       cg -i pattern - search the default list of files for all files matching the pattern (and case-insensitively).

       cg pattern '*.c' - search recursively for pattern in all *.c files.  This automatically converts '*' to '.*' and '.' to '.'  for  you  and
       does a Perl pattern match on all files in the tree.

       cg  pattern  *.c  - search through the shell-expanded list of *.c files, so not done recursively (in other words, only the files your shell
       pass to the script as arguments).

       cg -l - show the last log made.

COMMAND-LINE OPTIONS
       -i   Do a case-insensitive search.

       -l   Show the last log made.

       -p   Toggle the default pager option.  cg has a bulit-in pager function, which can be enabled or disabled by default (in .cgvgrc).  If  the
	    default is enabled, this option disables the pager; if the default is disabled, this option enables it.

       -P   Force the built-in pager to be disabled.

FILES

       ${HOME}/.cglast
	      Log file of the last search.

       ${HOME}/.cgvgrc
	      Per-user configuration file (if the defaults are not desireable).

       ${HOME}/.cgvg/*
	      Log files in $HOSTNAME.shell_pid form with the log of the last search.

SEE ALSO

       vg(1), perl(1), find(1), grep(1), cscope(1)

AUTHOR

       cg was written by Joshua Uziel <uzi@uzix.org>.

								    13 Mar 2002 							     CG(1)