Shell Command

Move all found files by find

find directory/path -type f -wholename *.png -exec mv -v {} target_directory \;

unzip

list up zipped files

unzip -l file.zip

curl

curl \
  -H "Content-Type: application/json" \
  -H 'Token: token="Ep4lqUPBLM0zY/1/uyQFSG/z1T0FJ4eALYn1f2inp98UnZkx3RqqKg=="' \
  -X POST \
  -d '{
  "a" : {
    "b": 1,
    "c": 2
  }
}' http://localhost:3000/api/damage/reports
  • -H: Header
  • -X: Method
  • -d: data

less

  • -N: Line number

sed

Add line to top of the file

sed -i -e '1i something' file_path

for each file

for file in `find . -type f -name "*.md"`; do;
  sed -i -e "1i something\nsomething" $file
done

Change special character

F=access/path.php
cp -v $F ${F}_bk
sed -i -e 's/<?php echo file_get_contents(\$_SERVER\['\''DOCUMENT_ROOT'\''\]\.'\''\/file\/path.html'\''); ?>//g' $F
sed -i -e 's/^\(\s*\)<\/tag>/\1    <?php echo file_get_contents\($_SERVER['\''DOCUMENT_ROOT'\''].'\''\/file\/path.html'\''\); ?>\n\1<\/tag>/g' $F
diff $F ${F}_bk
rm -i ${F}_bk
  • sed -e で、 $, (, ) はエスケープしなくてよい。
  • パターンは \1, \2 で参照できる。
  • タブは $'\t' と書くか Ctrl+V を押してから Tab を押すかで表現できる。

grep

find banner -type f -print0 2>&1|xargs -0 grep -dskip "</head>"
find public_html -type f | grep -dskip "<head>" | grep -d head.html
  • -dskip
    • skip directory
  • -d
    • except.

wget

wget -O output_file_name url

ftp

Connect with ftp first, after that, type open $server_name. Then, user name and password will be asked.

Alternatives

sudo alternatives --install /usr/bin/java java /usr/java/jdk... 3
sudo alternatives --install /usr/bin/java java /usr/local/lib/jdk-10.0.2/bin/java 4

find

  • delete all files except the specific file. 
      find public_html/blog -type f \! -name "\.gitkeep"
  • list files with absolute path 
      find `pwd` -name something* -type f

ls

list files with absolute path

ls -d $PWD/*

history

  • remove history 
      history

    繰り返し実行すると履歴を全て削除することも可能。

cut

  • split with tab

    • pick up the first column data

        cut -d$'\t' -f1 file_path