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--- bash [2012/07/09 16:44] – created admin
+++ bash [2021/07/12 20:19] (current) – francesco
@@ Line 1: / Line 1: @@
+Per cifrare un file di testo usare questo comando:
+<code>
+gpg --symmetric --no-symkey-cache --cipher-algo AES256 prova.txt
+</code>
+per decifrarlo, usare:
+<code>
+gpg -o prova.txt -d prova.txt.gpg
+</code>
+---
+Per cercare - ed eliminare - i file doppi è utilissima **fdupes**, sia su Linux che in FreeBSD. Questa pagina ha delle istruzioni ben scritte:
+http://www.admin-linux.fr/?p=5754
+Quindi è opportuno inserire un cron-job che lo faccia una volta a settimana:
+<code>
+fdupes -rdN /home/francesco/Mailing-lists/
+</code>
+----
+Wiki eccellente su **bash**:
+http://wiki.bash-hackers.org/doku.php
+----
+[[tmux]]
 Copio qui i miei file di configurazione bash.
+<code>
+francesco@serverHP:~$ cat .bashrc
+# ~/.bashrc: executed by bash(1) for non-login shells.
+# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
+# for examples
+# If not running interactively, don't do anything
+[ -z "$PS1" ] && return
+# don't put duplicate lines in the history. See bash(1) for more options
+# don't overwrite GNU Midnight Commander's setting of `ignorespace'.
+HISTCONTROL=$HISTCONTROL${HISTCONTROL+:}ignoredups
+# ... or force ignoredups and ignorespace
+HISTCONTROL=ignoreboth
+# append to the history file, don't overwrite it
+shopt -s histappend
+# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
+# check the window size after each command and, if necessary,
+# update the values of LINES and COLUMNS.
+shopt -s checkwinsize
+# make less more friendly for non-text input files, see lesspipe(1)
+#[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"
+# set variable identifying the chroot you work in (used in the prompt below)
+if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then
+    debian_chroot=$(cat /etc/debian_chroot)
+fi
+# set a fancy prompt (non-color, unless we know we "want" color)
+case "$TERM" in
+    xterm-color) color_prompt=yes;;
+esac
+# uncomment for a colored prompt, if the terminal has the capability; turned
+# off by default to not distract the user: the focus in a terminal window
+# should be on the output of commands, not on the prompt
+#force_color_prompt=yes
+if [ -n "$force_color_prompt" ]; then
+    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
+        # We have color support; assume it's compliant with Ecma-48
+        # (ISO/IEC-6429). (Lack of such support is extremely rare, and such
+        # a case would tend to support setf rather than setaf.)
+        color_prompt=yes
+    else
+        color_prompt=
+    fi
+fi
+if [ "$color_prompt" = yes ]; then
+    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
+else
+    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
+fi
+unset color_prompt force_color_prompt
+# If this is an xterm set the title to user@host:dir
+case "$TERM" in
+xterm*|rxvt*)
+    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
+    ;;
+*)
+    ;;
+esac
+# enable color support of ls and also add handy aliases
+if [ -x /usr/bin/dircolors ]; then
+    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
+    alias ls='ls --color=auto'
+    #alias dir='dir --color=auto'
+    #alias vdir='vdir --color=auto'
+    #alias grep='grep --color=auto'
+    #alias fgrep='fgrep --color=auto'
+    #alias egrep='egrep --color=auto'
+fi
+# Alias definitions.
+# You may want to put all your additions into a separate file like
+# ~/.bash_aliases, instead of adding them here directly.
+# See /usr/share/doc/bash-doc/examples in the bash-doc package.
+if [ -f ~/.bash_aliases ]; then
+    . ~/.bash_aliases
+fi
+# enable programmable completion features (you don't need to enable
+# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
+# sources /etc/bash.bashrc).
+if [ -f /etc/bash_completion ] && ! shopt -oq posix; then
+    . /etc/bash_completion
+fi
+linuxlogo -a
+</code>
+questo è il .bash.aliases
+<code>
+francesco@serverHP:~$ cat .bash_aliases
+############################
+### some more ls aliases ###
+############################
+#alias ll='ls -l'
+#alias l='ls -CF'
+alias ll='ls -lh'
+alias lh='ls -a | egrep "^\."'
+alias la='ls -alh'
+alias l='ls -CFh'
+alias lu='sudo apt-get update && sudo apt-get upgrade'
+</code>