snippets / bash
All snippets tagged bash (6)
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raccourcis bash
plein de raccourcis pour bash, crédit : Benoît BALON (posteet)
1 tab <---> auto complétion pour les fichiers et les dossiers
2 ^[chaîne 1]^[chaîne 2]^ <---> lance la dernière commande en remplaçant la chaîne 1 par la chaîne 2
3 !-[n] <---> rappelle la commande lancée il y a n commandes
4 !! <---> lance la dernière commande
5 !?[chaîne] <---> lance la dernière commande terminant par la chaîne de caractères
6 !?[chaîne]? <---> lance la dernière commande contenant la chaîne de caractères
7 ![chaîne] <---> lance la dernière commande commençant par la chaîne de caractères
8 ![n°] <---> rappelle la commande n°... de l'historique
9 !# <---> lance la plus ancienne commande de l'historique
10 [commande] !^ <---> lance la commande avec le premier argument de la commande précédente
11 [commande] !:[n]-[m] <---> lance la commande avec les arguments n à m de la commande précédente
12 [commande] !:[n°] <---> lance la commande avec l'argument n°... de la commande précédente
13 [commande] !$ <---> lance la commande avec le dernier argument de la commande précédente
14 Alt + . <---> colle le dernier mot de la ligne précédente
15 Alt + b <---> déplace le curseur d'un mot vers la gauche
16 Alt + c <---> met en majuscule la lettre courante, en minuscules les autres lettres du mot courant, puis se place au mot suivant
17 Alt + d <---> efface le mot suivant
18 Alt + f <---> déplace le curseur d'un mot vers la droite
19 Alt + t <---> échange le mot courant et le mot précédent
20 Ctrl + _ <---> Annuler les dernières modifications (rester appuyé)
21 Ctrl + a <---> déplace le curseur en début de ligne
22 Ctrl + c <---> envoie le signal SIGINT au processus en cours
23 Ctrl + d <---> efface le caractère courant, ou déconnecte (logout) si la ligne est déjà vide
24 Ctrl + e <---> déplace le curseur en fin de ligne
25 Ctrl + h <---> efface le dernier caractère
26 Ctrl + k <---> coupe tout à droite du curseur
27 Ctrl + l <---> efface l'écran (commande clear)
28 Ctrl + n <---> commande suivante (équivalent à la touche flèche bas)
29 Ctrl + o <---> exécute la commande (touche entrée)
30 Ctrl + p <---> commande précédente (équivalent à la touche flèche haut)
31 Ctrl + q <---> fait apparaître la saisie / relance l'affichage
32 Ctrl + r <---> recherche dans l'historique (Ctrl + r pour remonter à la chaîne précédente)
33 Ctrl + s <---> masque la saisie / arrête l'affichage (touche pause)
34 Ctrl + t <---> permet d'inverser deux lettres
35 Ctrl + u <---> coupe tout à gauche du curseur
36 Ctrl + w <---> coupe le mot à gauche du curseur
37 Ctrl + y <---> colle ce qui a été effacé à gauche du curseur (suite à un Ctrl + u)
38 Ctrl + z <---> passe le processus en cours en arrière plan
39 Echap, 10, A <---> répète 10 fois le caractère A
40 Echap, 5, Ctrl + q, Ctrl + v, 9 <---> répète 5 fois le chiffre 9 -
Rotate backup files (mysql - mysqlhotcopy)
Makes backup named 1_dump.tar.gz, 2_dump.tar.gz... You'll get as many backup as $ROT_PERIOD. In this example, you have backup history for 15 days. Date is stored via extracted tgz dir name.
1 #!/bin/bash
2
3 ################################################
4 # author : Alexandre BULTE - alexandre[at]bulte[dot]net
5 # license : GPL v2
6 ################################################
7
8 BACKUP_PATH='/home/xxx/backup'
9 # db names
10 DBS='db1 db2 db3'
11 MYSQL_USER='root'
12 MYSQL_PASSWD='xxxxxx'
13 ROT_PERIOD=15
14 NEXT_ID=0
15 DATE_TODAY=$( date +%Y%m%d-%H%M%S )
16
17 # rep sauvegarde
18 REP=$BACKUP_PATH/$DATE_TODAY
19 if [ ! -d $REP ];
20 then
21 mkdir $REP
22 fi
23
24 # fetch biggest id in dir
25 cd $BACKUP_PATH
26 BIG_ID=$( ls -1 *_dump.tar.gz | tail -n 1 | cut -d '_' -f 1 ) &> /dev/null
27
28 if [ ! $BIG_ID ];
29 then
30 BIG_ID=0
31 fi
32
33 # rotation if at least 1_dump.tar.gz
34 for i in $( seq 1 $BIG_ID );
35 do
36 NEXT_ID=$( expr $i + 1 )
37 NEXT_FILENAME=$NEXT_ID'_dump.tar.gz'
38 FILENAME=$i'_dump.tar.gz'
39 if [ -e $FILENAME ];
40 then
41 echo "$FILENAME exists"
42 if [ $i = $ROT_PERIOD ];
43 then
44 echo "Removing oldest archive..."
45 rm $i'_dump.tar.gz'
46 else
47 echo "Rotating $i..."
48 cp $FILENAME $NEXT_FILENAME
49 fi
50 fi
51 done
52
53 # sauvegarde
54 mysqlhotcopy -q -u $MYSQL_USER -p $MYSQL_PASSWD $DBS $REP
55
56 # compression
57 tar cfz 1_dump.tar.gz $DATE_TODAY
58
59 # suppression
60 rm -rf $DATE_TODAY -
pkgsearch - Search archlinux pkgbuild
pkgsearch list all packages that contain your string and display installed packages. pksearch -h for options
1 #!/bin/bash
2 #
3 # pkgsearch
4 #
5 # Copyright (c) 2006 by Benoit Chesneau <benoit@bchesneau.info>
6 #
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 2 of the License, or
10 # (at your option) any later version.
11 #
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
16 #
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
20 # USA.
21 #
22 # AUTHORS :
23 # - Maintainer : Benoit Chesneau <benoitc@archlinuxfr.org>
24 # - Contributor : slubman <slubman@archlinuxfr.org>
25 # CHANGELOG :
26 # - version 0.6
27 # cosmethics changes
28 # internal rewrite
29 # - version 0.5 (2007-02-28 15:19) :
30 # search on multiple words (slubman)
31 # search in description is case insensitive (slubman)
32 # - version 0.4 (2007-02-28 13:14) :
33 # add possibility to search in repository (slubman)
34 # add possibility to exclude repository in search (slubman)
35 # - version 0.3 (2007-02-28) :
36 # add possibility to display only installed packages (slubman)
37 # add possibility to display only not installed packages (benoitc)
38 # - version 0.1
39 # initial release
40 #
41
42 PACMAN_SOURCES="/var/lib/pacman"
43 PWD=`pwd`
44
45 cd $PACMAN_SOURCES
46
47 myver="0.6"
48
49
50 NAME_ONLY=0
51 USE_COLOR="y"
52 NOT_INSTALLED=0
53 ONLY_INSTALLED=0
54 IN="all packages"
55 SKIP_REPO=()
56 IN_REPO=()
57 search_string=()
58
59 installed() {
60 if [ "$USE_COLOR" = "Y" -o "$USE_COLOR" = "y" ]; then
61 echo -e "\033[1;35m$1\033[1;0m \033[1;35m(*)\033[1;0m" >&2
62 else
63 echo "$1 (*)" >&2
64 fi
65 let nb=nb+1
66 }
67
68 not_installed() {
69 echo "$1" >&2
70 let nb=nb+1
71 }
72
73 msg() {
74 if [ "$USE_COLOR" = "Y" -o "$USE_COLOR" = "y" ]; then
75 echo -e "\033[1;32m==>\033[1;0m \033[1;1m$1\033[1;0m" >&2
76 else
77 echo "==> $1" >&2
78 fi
79 }
80
81 error() {
82 if [ "$USE_COLOR" = "Y" -o "$USE_COLOR" = "y" ]; then
83 echo -e "\033[1;31m==> ERROR:\033[1;0m \033[1;1m$1\033[1;0m" >&2
84 else
85 echo "==> ERROR: $1" >&2
86 fi
87 }
88
89 usage() {
90 echo "pkgsearch $myver"
91 echo "usage : $0 [-n] <searchstring>"
92 echo
93 echo "pkgsearch list all packages that contain your"
94 echo "string and display installed packages"
95 echo
96 echo "Options"
97 echo " -n, --name Search on pkgname only"
98 echo " -m, --nocolor Disable colorized output messages"
99 echo " -i, --installed Display only installed packages"
100 echo " -sr, --skip-repo Exclude repo in search"
101 echo " -ir, --ni-repo Search only in repo"
102 echo " -s, --skip Display only not installed packages"
103 echo " -h, --help Display usage"
104 }
105
106 if [ $# -lt 1 ]; then
107 usage
108 exit 1
109 fi
110
111 while [ "$#" -ne "0" ]; do
112 case $1 in
113 --installed|-i)
114 ONLY_INSTALLED=1
115 IN="only installed packages"
116 ;;
117 --help|-h)
118 usage
119 exit 0
120 ;;
121 --name|-n)
122 NAME_ONLY=1
123 ;;
124 --nocolor|-m)
125 USE_COLOR=n
126 ;;
127 --skip|-s)
128 NOT_INSTALLED=1
129 IN="only not installed packages"
130 ;;
131 --skip-repo|-sr)
132 SKIP_REPO[${#SKIP_REPO[*]}]=$2
133 shift
134 ;;
135 --in-repo|-ir)
136 IN_REPO[${#IN_REPO[*]}]=$2
137 shift
138 ;;
139 *)
140 search_string[${#search_string[*]}]=$1
141 ;;
142 esac
143 shift
144 done
145
146 if [ "$NOT_INSTALLED" = "1" -a "$ONLY_INSTALLED" = "1" ]; then
147 error "Error : Skip or show installed packages, but not both..."
148 exit 0
149 fi
150
151 nb=0
152
153 msg "Looking for \""${search_string[*]:-nothing}\""\n\tin ${IN}\n\tof ${IN_REPO[*]:-all repos}\n\texcluding ${SKIP_REPO[*]:-no repo}..."
154 search_token=${search_string[0]}
155 unset search_string[0]
156 for word in ${search_string[*]}; do
157 search_token="$search_token|$word"
158 done
159 search_token="($search_token)"
160
161 for repo in `find * -maxdepth 0 -type d`; do
162 if ! [ $repo = 'local' ]; then
163 if [ "$(echo ${SKIP_REPO[@]} | grep $repo)" ]; then
164 continue
165 fi
166 if [ "$(echo ${IN_REPO[@]} | grep -v $repo)" ]; then
167 continue
168 fi
169 cd $repo
170 for pkg in `/bin/ls`; do
171 if [ -f $pkg/desc ]; then
172 if [ "$NAME_ONLY" = "1" ]; then
173 if [ "$(echo $pkg | grep -E $search_token)" ]; then
174 NAME=`grep -A 1 NAME $pkg/desc | tail -1`
175 VERSION=`grep -A 1 VERSION $pkg/desc | tail -1`
176 if [ -d $PACMAN_SOURCES/local/$pkg ]; then
177 if [ "$NOT_INSTALLED" = "0" ]; then
178 installed "${nb} - [${repo}] - ${NAME} - ${VERSION}"
179 fi
180 else
181 if [ "$ONLY_INSTALLED" = "0" ]; then
182 not_installed "${nb} - [${repo}] - ${NAME} - ${VERSION}"
183 fi
184 fi
185 fi
186 else
187 if [ "$(grep -E -i $search_token $pkg/desc)" ]; then
188 NAME=`grep -A 1 NAME $pkg/desc | tail -1`
189 VERSION=`grep -A 1 VERSION $pkg/desc | tail -1`
190 if [ -d $PACMAN_SOURCES/local/$pkg ]; then
191 if [ "$NOT_INSTALLED" = "0" ]; then
192 installed "${nb} - [${repo}] - ${NAME} - ${VERSION}"
193 fi
194 else
195 if [ "$ONLY_INSTALLED" = "0" ]; then
196 not_installed "${nb} - [${repo}] - ${NAME} - ${VERSION}"
197 fi
198 fi
199 fi
200 fi
201 fi
202 done
203 cd ..
204 fi
205 done
206
207 echo
208 echo "$nb packages found.."
209
210 cd $PWD -
Images resizing with shell and imagemagick
Resize a lot of images with shell and imagemagick
1 for i in *.jpg
2 do convert $i -scale 1024x760 resized-$i;
3 done -
upload images to imageshack from console
Script to upload images to imageshack from console. Require bash and curl.
1 #!/bin/bash
2 #
3 # imageshack_upload.sh
4 #
5 # Copyright (c) 2007 by enki <enki@crocobox.org>
6 #
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 2 of the License, or
10 # (at your option) any later version.
11 #
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
16 #
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
20 # USA.
21 #
22 # Changelog :
23 # * 2006/10/22 - Updated to support files with space .
24 # Changes proposed by slubman(http://www.slubman.net)
25 # * 2006/10/22 - First version
26
27 myver='0.2'
28 CURL=$(which curl)
29
30
31
32 TMPFILE=$(mktemp /tmp/imageshack.XXXXXXXXXX) || exit 1
33
34 cleanup() {
35 rm -rf $TMPFILE
36 [ "$1" ] && exit $1
37 }
38
39 usage() {
40 echo "imageshack_upload $myver"
41 echo "usage: $0 <root>"
42 echo
43 echo "This script allow you to send image to htpp://www.imageshack.us"
44 echo "in command line"
45 echo
46 echo "example: imageshack_upload.sh `pwd`/myimage.png"
47 echo
48 }
49
50 if [ $# -lt 1 ]; then
51 usage
52 rm -rf $TMPFILE
53 exit 1
54 fi
55
56 if [ "$1" = "-h" -o "$1" = "--help" ]; then
57 usage
58 rm -rf $TMPFILE
59 exit 0
60 fi
61
62
63 img="$1"
64
65 if ! [ -f "$img" ]; then
66 echo "Error: file don't exist"
67 exit 1
68 fi
69
70 $CURL -H Expect: -F fileupload="@${img}" -F xml=yes http://www.imageshack.us/index.php > $TMPFILE
71
72 echo "Url of image on imageshack:"
73 echo $(cat $TMPFILE | grep -E "<image_link>(.*)</image_link>" | sed 's|<image_link>\(.*\)</image_link>|\1|')
74
75 cleanup -
class to parse bash variable from a script
This class allow you to parse variable in a bash script from ruby . It retourn an array of variables. bash array is also saved as ruby array.
1 #!/usr/bin/ruby
2 #
3 # how to use it :
4 # ovars=EnvBash.new(file)
5 # bash_vars=ovars.vars
6 #
7
8
9 class MultiRegexp < Regexp
10 def matches(str)
11 str.scan(self) do
12 yield Regexp.last_match
13 end
14 end
15 end
16
17
18 class EnvBash
19 attr_reader :bash_env
20
21 def initialize(source)
22 bash_script ="\
23 source #{source}
24 set
25 "
26 @bash_env = `#{bash_script}`
27 end
28
29 def vars
30 bvars=Hash.new
31 re=MultiRegexp.new('(\w*)=(.*)$', true)
32 re.matches(@bash_env) { |i|
33 if (i[1] != "")
34 if i[2] =~ /\(([^\)]*)\)/
35 ta=Array.new
36 re_a=MultiRegexp.new('\[\d*\]=\"([^"]*)\"', true)
37 re_a.matches($1) { |j|
38 ta.push(j[1])
39 }
40 bvars[i[1]]=ta
41 elsif
42 bvars[i[1]]=i[2]
43 end
44 end
45 }
46 return bvars
47 end
48 end
49
50 # test on a pkgbuild (archlinux)
51 bashvars=EnvBash.new("/var/abs/kernels/kernel26/PKGBUILD")
52
53 bvars=bashvars.vars
54 puts "#{bvars['pkgname']}-#{bvars['pkgver']}-#{bvars['pkgrel']}"
55
56 if bvars['source'].instance_of?(Array)
57 puts "sources : "
58 bvars['source'].each { |src|
59 puts src
60 }
61 end
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