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Shell Programming and Scripting
read string from file into variable
Post 302338829 by lathavim on Wednesday 29th of July 2009 03:50:41 AM
07-29-2009
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1. Shell Programming and Scripting
How...
can I read input by a user character by cahracter. And assign each character from the string to a variable?
Any help would be greatly appreciated!
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2. Shell Programming and Scripting
Hi, guys. I have one question:
I need to search for a string in a file, and then extract another string from the file and assign it to a variable.
For example:
the contents of the file (group) is below:
...
ftp:x:23:
mail:x:34
...
testing:x:2001
sales:x:2002
development:x:2003
...... (6 Replies)
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Hi,
i call my shell like:
my_shell "my project name"
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Hi ,
I have below file with 13 columns. I need 2-13 columns seperated by comma and I want to append each row with a string "INSERT INTO xxx" in the begining as 1st column and then a variable "$node" and then $2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13 and at the end another string " ; COMMIT;"
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Hi,
i have one file which has list of data like this
xemp 42
yeet 87
wax 223
dyne 442
i want to read each of in for loop from the script
can you give me syntax
Use code tags, ty. (2 Replies)
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6. Shell Programming and Scripting
Hi,
I'm using bash and brand new to shell script. I would like to do the following.
I have a string which is "UPDATE=1.0". I would like to read the value "1.0" alone in a variable. i.e the things afer "=" How do I do that?
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7. Shell Programming and Scripting
Hi ,
I want to read below output, lets called it output1.txt and each string for every line will be declare as a variables.
This is the input file
196 server_a server_unix_2 FW
196 server_b server_win_1 CD
196 server_c server_win_2 CD
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8. Shell Programming and Scripting
Can someone tell me how I can do this?
e.g:
a=$(echo -e wert trewt ertert ertert ertert erttert
erterte
rterter
tertertert
ert)
How do i replace the STRING with $a?
I try this:
sed -i 's/STRING/'"$a"'/g' filename.ext
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I would like to read a variable name from file and I would like to use this...
e.g.
VARIABLE1=XXXXXX
File.txt
$VARIABLE1
Shell
for STRING in `cat File.txt`
echo $STRING
done
I would like the print XXXXXX.
It's possible????:confused:
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Hi all, the value in the following file is just an example. It could be a different value/network addresses.
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Initial Output, net.txt
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LEARN ABOUT HPUX
rc.config
rc.config(4) Kernel Interfaces Manual rc.config(4) NAME
rc.config, rc.config.d - files containing system configuration information SYNOPSIS
DESCRIPTION
The system configuration used at startup is contained in files within the directory The file sources all of the files within and and exports their contents to the environment. /etc/rc.config The file is a script that sources all of the scripts, and also sources To read the configuration definitions, only this file need be sourced. This file is sourced by whenever it is run, such as when the command is run to transition between run states. Each file that exists in is sourced, without regard to which startup scripts are to be executed. /etc/rc.config.d The configuration information is structured as a directory of files, rather than as a single file containing the same information. This allows developers to create and manage their own configuration files here, without the complications of shared ownership and access of a common file. /etc/rc.config.d/* Files This is where files containing configuration variable assignments are located. Configuration scripts must be written to be read by the POSIX shell, and not the Bourne shell, or In some cases, these files must also be read and possibly modified by control scripts or the sam program. See sd(4) and sam(1M). For this reason, each variable definition must appear on a separate line, with the syntax: No trailing comments may appear on a variable definition line. Comment statements must be on separate lines, with the comment character in column one. This example shows the required syntax for configuration files: Configuration variables may be declared as array parameters when describing multiple instances of the variable configuration. For example, a system may contain two network interfaces, each having a unique IP address and subnet mask (see ifconfig(1M)). An example of such a dec- laration is as follows: Note that there must be no requirements on the order of the files sourced. This means configuration files must not refer to variables defined in other configuration files, since there is no guarantee that the variable being referenced is currently defined. There is no protection against environment variable namespace collision in these configuration files. Programmers must take care to avoid such prob- lems. /etc/TIMEZONE The file contains the definition of the environment variable. This file is required by POSIX. It is sourced by at the same time the files are sourced. SEE ALSO
rc(1M). rc.config(4)