Bash : Check aphanumeric content in variable Post: 302374135

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

[bash] Check if variable is set or blank

Hello guys. In my script, i have the following code: echo "The tarfile contains these directorys" tar -tf file.tar > tarlist.txt cat tarlist | awk -F/ '{print $1 "/" $2}' | nl echo "Enter path of the directory you want to extract or just press enter to extract everything: " read path...

2. Shell Programming and Scripting

How to check if two variable are empty strings at once? (bash)

I need to check if $1 or $2 are empty before continuing but I don't know if bash has any logic of the sort. This is what I'm looking for - except that "and" doesn't seem to work. if and ;then ... Thank you! :D

3. Shell Programming and Scripting

To check the content of one file in another

Hi , I have a file called "X" . the content of X are X -- abc def and i have a file called "Y" , the content of Y are Y -- erty sdss s abc sfs def I need to check if the content of file X is contained in Y.Only unix

4. UNIX for Dummies Questions & Answers

check length content existence of variable

hi guys, im learning so be gentle... i'm wanting to write a script to read in a customer number. in order that the code is robust i want to check 1) the length of the value entered (4 characters) 2) that all characters entered are numeric between the values 1 to 3 3) that a value is...

5. Shell Programming and Scripting

Can i use grep to check variable content correctnes?

I need to know if is possible to use grep to check content of a local variable, for eg. i use read index and i want to check if the index i read is in correct form, how do i do that i tried with grep but i get errors all the time dont know how to make it work.. thanks!

6. Shell Programming and Scripting

korn shell: check the content of a string of a variable

hello, i have a variable which should have following content : var="value1" or var="value2" or var="value2:*" # example: value2:22 how can i check : - if the content is ok (value1 / value2* ) - the two options of "value2" when content is example "value2:22" , i want to split...

7. Shell Programming and Scripting

Adding Content to Variable (bash)

is this possible? its kind of like incrementing the value of a number in a variable. but in this case, instead of the value of the variable being a number, it's just contents/strings/characters/alpha-numeric etc. NOT a number. For instance: VAR=Tommy for all in $(blah blah) do ...

8. Shell Programming and Scripting

Check content of file

Hi All, I m very new to unix...i jus want to chk the content of file. ma requirement is if file has a content then display it else dont display or something pls specify which loop shalli use either for or while??

9. Shell Programming and Scripting

Check content

I would like to write a shell script to do the following , would advise how to make it ? very thanks 1. Connect LDAP server ( Id : user , password : pass ) 2. check the field "user_account_create_date" in the LDAP server , the format of data in this field in LDAP is ABC20130922 ( 22 Sep ,...

10. Shell Programming and Scripting

How to send to perl the content of a bash variable as argument?

I want to send the content of a bash variable as a python argument for processing. The problem is that bash doesn't "expand" the content, just sends the expression. script.sh#!/bin/bash export RECEIVEDDATE=$(date +"%Y%m%d.%H%M%S") perl checkdate.py checkdate.pyimport datetime import os...

LEARN ABOUT CENTOS

bashbug-64

BASHBUG(1)						      General Commands Manual							BASHBUG(1)

NAME

       bashbug - report a bug in bash

SYNOPSIS

       bashbug [--version] [--help] [email-address]

DESCRIPTION

       bashbug	is  a shell script to help the user compose and mail bug reports concerning bash in a standard format.	bashbug invokes the editor
       specified by the environment variable EDITOR on a temporary copy of the bug report format outline. The user must fill  in  the  appropriate
       fields  and  exit  the  editor.	 bashbug  then	mails the completed report to bug-bash@gnu.org, or email-address.  If the report cannot be
       mailed, it is saved in the file dead.bashbug in the invoking user's home directory.

       The bug report format outline consists of several sections.  The first section provides information about the  machine,	operating  system,
       the  bash  version, and the compilation environment.  The second section should be filled in with a description of the bug.  The third sec-
       tion should be a description of how to reproduce the bug.  The optional fourth section is for a proposed fix.  Fixes are encouraged.

ENVIRONMENT

       bashbug will utilize the following environment variables if they exist:

       EDITOR Specifies the preferred editor. If EDITOR is not set, bashbug defaults to emacs.

       HOME   Directory in which the failed bug report is saved if the mail fails.

       TMPDIR Directory in which to create temporary files and directories.

SEE ALSO

       bash(1)

AUTHORS

       Brian Fox, Free Software Foundation
       bfox@gnu.org

       Chet Ramey, Case Western Reserve University
       chet@po.cwru.edu

GNU Bash-4.0							   1998 July 30 							BASHBUG(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

[bash] Check if variable is set or blank

Discussion started by: noratx

2. Shell Programming and Scripting

How to check if two variable are empty strings at once? (bash)

Discussion started by: ph0enix

3. Shell Programming and Scripting

To check the content of one file in another

Discussion started by: giri_luck

4. UNIX for Dummies Questions & Answers

check length content existence of variable

Discussion started by: skinnygav