pvincent
2 years ago
5 changed files with 175 additions and 0 deletions
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35tools/extract_pdf_image
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22tools/internet_check
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7tools/ip-lan-detect
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12tools/pgrep2
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99tools/shrinkpdf
@ -0,0 +1,35 @@ |
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#!/bin/bash |
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|
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|
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usage(){ |
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echo "Usage: $(basename "$0") <PAGE|[START]-[END]> <FILE.pdf> [FOLDER|PREFIX]" |
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} |
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[[ $# -lt 2 ]] && usage && exit 2 |
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|
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PAGE=$1 |
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PDF=$2 |
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DEST=${3:-.} |
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|
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[[ ! -f "$PDF" ]] && echo "FAILURE: File <$PDF> not found!" && exit 3 |
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file -bi "$PDF" | grep -q "application/pdf" |
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[[ $? -ne 0 ]] && echo "FAILURE: File <$PDF> not detected as a valid application/pdf document!" && exit 3 |
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|
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if [[ -d $DEST ]]; then |
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DEST="$DEST/extract" |
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fi |
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|
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if [[ "$PAGE" == *-* ]]; then |
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START=$(echo "$PAGE" | cut -d '-' -f1) |
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START=${START:-1} |
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PAGINATION="-f $START" |
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|
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END=$(echo "$PAGE" | cut -d '-' -f2) |
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if [[ ! -z $END ]]; then |
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PAGINATION="$PAGINATION -l $END" |
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fi |
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else |
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PAGINATION="-f $PAGE -l $PAGE" |
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fi |
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|
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pdftoppm -jpeg $PAGINATION "$PDF" "$DEST" |
@ -0,0 +1,22 @@ |
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#!/bin/bash |
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if ping -c1 1.1.1.1 2>&1 >/dev/null; then |
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connectivity=true |
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else |
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connectivity=false |
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fi |
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echo "connectivity=$connectivity" |
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|
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if ping -c1 google.fr 2>&1 >/dev/null; then |
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dns=true |
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else |
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dns=false |
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fi |
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echo "dns=$dns" |
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|
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if nmcli device status | grep -E "^wl" | grep -q connected; then |
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wifi=true |
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else |
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wifi=false |
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fi |
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echo "wifi=$wifi" |
@ -0,0 +1,7 @@ |
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#!/bin/bash |
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|
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nmap -sn `ip route | tail -1 | cut -d ' ' -f1` | sed -n 'n;p' | cut -c 22- | head -n -1 | awk '{tmp=$1; $1=$2; $2=tmp; gsub("\\(","",$1); gsub("\\)","",$1); printf "%-15s %s\n", $1, $2}' | sed 's/^ *//' |
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|
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# sed -n 'n;p' => FILTER odd lines |
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# awk '{tmp=$1; $1=$2; $2=tmp; gsub("\\(","",$1); gsub("\\)","",$1); printf "%-15s %s\n", $1, $2}' => SWAP words and remove parenthesis |
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# sed 's/^ *//' => REMOVE starting spaced |
@ -0,0 +1,12 @@ |
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#!/bin/bash |
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# Colorized pgrep |
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|
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arg1="$1" |
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|
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|
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if [[ $arg1 = *"grep"* ]];then |
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# remote the grep command itself from process list! |
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ps -eo pid,ppid,uname:20,cmd | grep -v $$ | grep --color=auto "$arg1" |
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else |
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ps -eo pid,ppid,uname:20,cmd | grep -v 'grep' | grep --color=auto "$arg1" |
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fi |
@ -0,0 +1,99 @@ |
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#!/bin/sh |
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|
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# http://www.alfredklomp.com/programming/shrinkpdf |
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# Licensed under the 3-clause BSD license: |
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# |
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# Copyright (c) 2014, Alfred Klomp |
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# All rights reserved. |
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# |
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# Redistribution and use in source and binary forms, with or without |
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# modification, are permitted provided that the following conditions are met: |
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# 1. Redistributions of source code must retain the above copyright notice, |
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# this list of conditions and the following disclaimer. |
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# 2. Redistributions in binary form must reproduce the above copyright notice, |
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# this list of conditions and the following disclaimer in the documentation |
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# and/or other materials provided with the distribution. |
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# 3. Neither the name of the copyright holder nor the names of its contributors |
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# may be used to endorse or promote products derived from this software |
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# without specific prior written permission. |
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# |
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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# POSSIBILITY OF SUCH DAMAGE. |
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|
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shrink () |
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{ |
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gs \ |
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-q -dNOPAUSE -dBATCH -dSAFER \ |
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-sDEVICE=pdfwrite \ |
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-dCompatibilityLevel=1.3 \ |
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-dPDFSETTINGS=/screen \ |
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-dEmbedAllFonts=true \ |
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-dSubsetFonts=true \ |
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-dAutoRotatePages=/None \ |
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-dColorImageDownsampleType=/Bicubic \ |
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-dColorImageResolution=$3 \ |
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-dGrayImageDownsampleType=/Bicubic \ |
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-dGrayImageResolution=$3 \ |
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-dMonoImageDownsampleType=/Bicubic \ |
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-dMonoImageResolution=$3 \ |
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-sOutputFile="$2" \ |
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"$1" |
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} |
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|
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check_smaller () |
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{ |
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# If $1 and $2 are regular files, we can compare file sizes to |
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# see if we succeeded in shrinking. If not, we copy $1 over $2: |
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if [ ! -f "$1" -o ! -f "$2" ]; then |
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return 0; |
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fi |
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ISIZE="$(echo $(wc -c "$1") | cut -f1 -d\ )" |
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OSIZE="$(echo $(wc -c "$2") | cut -f1 -d\ )" |
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if [ "$ISIZE" -lt "$OSIZE" ]; then |
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echo "Input smaller than output, doing straight copy" >&2 |
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cp "$1" "$2" |
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fi |
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} |
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usage () |
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{ |
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echo "Reduces PDF filesize by lossy recompressing with Ghostscript." |
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echo "Not guaranteed to succeed, but usually works." |
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echo " Usage: $1 infile [outfile] [resolution_in_dpi]" |
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} |
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IFILE="$1" |
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# Need an input file: |
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if [ -z "$IFILE" ]; then |
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usage "$0" |
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exit 1 |
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fi |
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|
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# Output filename defaults to "-" (stdout) unless given: |
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if [ ! -z "$2" ]; then |
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OFILE="$2" |
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else |
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OFILE="-" |
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fi |
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# Output resolution defaults to 72 unless given: |
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if [ ! -z "$3" ]; then |
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res="$3" |
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else |
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res="72" |
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fi |
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shrink "$IFILE" "$OFILE" "$res" || exit $? |
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check_smaller "$IFILE" "$OFILE" |
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