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- brace expansion
- expansion is used to generate arbitrary strings. The specified strings are used to generate **all possible combinations** with the optional surrounding preambles and postscripts. ... that follow a specific naming-scheme. :!: It is the very first step in expansion-handling, it's impor... When you use <code> echo {a,b}$PATH </code> then the brace expansion **does not expand the variable**
- arrays bash
- tax ^Description ^ | **${ARRAY[N]}** | Expands to the value of the index ''N'' in the **indexed** array ''ARRAY''. If ''N'' is a negative number, it's treated as the offset from the maximum assigned index (can't be
- Los ficheros de inicio de Bash
- <code bash># Setup for /bin/ls to support color, the alias is in /etc/bashrc. if [ -f "/etc/dircolors"... les, utiliza el fichero global.<code bash># Setup the INPUTRC environment variable. if [ -z "$INPUTRC" ... soportar color.<code bash># This will tinker with the value of TERM in order to convince certain # app... o no son el mismo.<code bash># By default we want the umask to get set. if [ "$(id -gn)" = "$(id -un)"
- awk
- ia: [[https://www.howtogeek.com/562941/how-to-use-the-awk-command-on-linux/]] * rule = pattern + acti... awk; omit.awk>#!/usr/bin/awk -f BEGIN { # set the input and output field separators FS=":" OFS=":" # zero the accounts counter accounts=0 } { # set field 2 to nothing $2="" # print the entire line print $0 # count another account
- heredoc (docs emblebed)
- ormed on word. # If any part of word is quoted, the delimiter is the result of quote removal on word, and the lines in the here-document # are not expanded. So EOF is quoted as follows cat <<'EOF' >$OUT Status
- comandos bash
- ns/19604384/unixtwo-directories-with-same-name-on-the-same-path]] === exclusión excluir ficheros del l... askubuntu.com/questions/215505/how-do-you-monitor-the-progress-of-dd]] * ''cpio'' : como ''dd'' pero
- grub
- Desde otro Linux:<code bash> sudo fdisk -l # find the EFI partition sudo mount /dev/<partition_name> /m... mgr -v sudo efibootmgr -b XXXX -B # where XXXX is the entry you want to remove (números) </code> /via:
- BASH
- nts.io/bash</callout> <callout type="info" title="The Bash Hackers Wiki" icon="true">https://wiki.bash-... ttps://www.gnu.org/software/bash/manual/html_node/The-Set-Builtin.html]]</callout> == scripting <callo
- Zona Horaria
- a: [[https://linuxacademy.com/blog/linux/changing-the-time-zone-in-linux-command-line/]] == time syncr... ault.com/questions/303517/how-time-is-affected-by-the-ntpd-and-etc-localtime]] * [[https://coreos.com
- dd
- do dd of=...</code> * [[http://askubuntu.com/questions/215505/how-do-you-monitor-the-progress-of-dd]]
- grep
- >tail -f some_log_file.log | grep --line-buffered the_thing_i_want</code> * búsqueda de 2 palabras:<c
- linux ifs
- ]] * [[https://unix.stackexchange.com/questions/9496/looping-through-files-with-spaces-in-the-names]]
- Locales
- ps://stackoverflow.com/questions/30479607/explain-the-effects-of-export-lang-lc-ctype-lc-all]] * [[ht
- PS1
- ]@\h\n" # Line 4: a red "✗" or a green "✓" and the error number if [[ $last_cmd == 0 ]]; then
- Special Shell Variables & Parameter Substitution and Expansion
- ng for a specific syntax you saw, without knowing the name? * [[#simple_usage | Simple usage]] *