bash amplifier

Write a robust bash scriptMany people use shell scripts to accomplish simple tasks and become part of their lives. Unfortunately, shell scripts can be very much affected by running exceptions. It is necessary to minimize such problems when writing scripts. In this article I'll cover some of the techniques that make bash scripts robust.Using Set-u www.ahlinux.comHow many times have you crashed the script bec

Bash Vulnerability Hardening Scheme1Vulnerability DescriptionThe previous period of time to do security reinforcement, using the BVS scan host, according to the scanned report shows that there are two Bash vulnerabilities, respectively:① GNU Bash environment variable Remote Command execution vulnerability (cve-2014-6271)The GNU

Linux File Max connections --- bash: ulimit: open files: cannot modify limit: Operation not permitted Problem description: logon system error,-bash: ulimit: open files: cannot modify limit: operation not permittedLast login: Thu Aug 23 14:42:27 2012 from 10.6.90.41-bash: ulimit: open files: cannot modify limit: Operation not permitted-

Before giving you a detailed introduction to the Linux Bash command, let's first understand the Bash command, and then give a comprehensive introduction to the Linux Bash command, hoping to be useful to you. You can edit events in the historical event list on the command line. Table 10-3 lists the operations performed to query the historical event list. Table 10-

2014-01-09 WCDJ I have previously summarized an article on implementing Web Services using Perl, "Web server implementation (minimal Perl Web server)." Interacting with the CGI interface is often required at work, and when the dependent interface is not yet implemented, it is possible to write a simple CGI interface to emulate the dependent interface to complete debugging. Bash is also one of the scripts you use daily, and this article summarizes how

Bash Preface This article is translated from the bash chapter in slackware Linux unleashed (Third edition), but some necessary deletions are made, and some changes are made according to the actual situation, if necessary, refer to the original article. If you have any questions about this article, please contact me: con@nease.net Introduction This article will introduce in detail the most common shell and

First, what is the shellThe generalized shell means that the interface that can manipulate the application becomes the shell, including the GUI of Linux and Windows.The narrow shell refers to the command-line aspect of the program, including ZSH,BASH,CSH, etc.View the available shells for the current system, the shell listed in file/etc/shells, known as a secure Shell list on the current system. The default shell, if it is not a shell in file/etc/shel

replacement (using reverse quotation marks) and the HERE document used to embed the reserved string text into the script. The Bourne shell is not only an important step forward, but also the basis for many derivative shells, many of which are now applied in typical Linux systems. Figure 1 demonstrates the series of important shells. The Bourne shell leads to the development of the Korn shell (ksh), almshells (ash), and popular Bourne Again shell (or Bash