私は、作業中の研究プロジェクトのデータを記録するために2つのスクリプトを自動的に起動し、作業が完了すると自動的にデータ用のディレクトリを作成し、そのディレクトリにデータを移動するシェルスクリプトを作成しています。プログラムは、「Trials」というフォルダがまだない場合は作成し、Trialフォルダ内で「Trial $ n」というフォルダを確認します。ここで、nは0から始まる増加する整数です。プログラムが実行されるたびに作成されるフォルダーの名前が 1 つ増えるようにするアイデアです。命名システムを除いて、プログラム全体がうまく機能します。最初のコードを書くときはうまくいきましたが、 "Trial0...Trial2"フォルダを削除すると、試行0〜2のフォルダが存在するかどうかにかかわらず、次に作成されるフォルダは "folder3"になります。これは「Trial13」フォルダが作成されるまで続きます。プログラムは毎回「Trial13」を上書きします。ここに私のコードがあります。関連行は149:187です。
1 #!/bin/bash
2 #-----------------------------------------------------------------------------
3 #The purpose of this script it to automate and streamline the data collection
4 #and analysis process for the touchless respitatory monitor. The script will
5 #prompt you for the paths of the themral camera executable
6 #(seek_viewer, usually in the libseek-thermal library), the path of the
7 #main python script (SingleThreadedFaceDetectionV6), and the path of
8 #removable media to which the files will be saved. It will then give you
9 #command prompts to guide you through the process and put a fully-formatted
10 #data folder in the removable media such that the folder is immediately
11 #compatable with the MATLAB script on PC.
12
13 #NOTE: Sometimes the thermal camera won't initialize properly and the program
14 #needs to be restarted until it works.
15
16 #Author: Caleb Schreier
17 #Date: 7 June 2022
18 #OS: Raspbian GNU/Linux 10 (buster)
19 #Kernel: Linux 5.10.103-v7l+
20 #Architecture: arm
21 #Python: 3.7
22 #Numpy: 1.22.4
23 #-----------------------------------------------------------------------------
24
25 #Import Settings
26 source launcherSettings.txt
27
28 #If setting don't exist, prompt user for settings
29 if [ "$remember" != "y" ];
30 then
31
32 echo
33 echo Please format paths as /folder/.../targetfolder
34 echo
35 echo Specify path to folder containing Thermal Camera Executable
36 echo \(libseek_viewer\)
37 echo
38
39 read -r thermalPath
40
41 echo
42 echo Specify path to folder containing Python Script
43 echo \(SingleThreadedFaceDetectionV6\)
44 echo
45
46 read -r opticalPath
47
48 echo
49 echo Specify path to which data should be saved
50 echo for flash drive, use /media/pi/DRIVENAME
51 echo
52
53 read -r mediaPath
54
55 echo
56 read -r -p "remember these settings? [y/n] " remember
57 echo
58
59 #Write settings to launcherSettings.txt
60 case "$remember" in
61 [yY][eE][sS]|[yY])
62 echo Saving to file...
63 echo "remember=y" | sudo tee launcherSettings.txt
64 echo "opticalPath=$opticalPath" | sudo tee -a launcherSettings.txt
65 echo "thermalPath=$thermalPath" | sudo tee -a launcherSettings.txt
66 echo "mediaPath=$mediaPath" | sudo tee -a launcherSettings.txt
67
68 ;;
69 *)
70 echo "remember=n" | sudo tee launcherSettings.txt
71 echo Settings not remembered.
72 ;;
73 esac
74
75 else
76
77 #if settings already exist, ask user whether to keep them. if not, reprompt for new settings
78 echo
79 read -r -p "Keep stored settings? [y/n] " modify
80
81 if [ "$modify" != "y" ];
82 then
83
84 echo
85 echo Please format paths as /folder/.../targetfolder
86 echo
87 echo Specify path to folder containing Thermal Camera Executable
88 echo \(libseek_viewer\)
89 echo
90
91 read -r thermalPath
92
93 echo
94 echo Specify path to folder containing Python Script
95 echo \(SingleThreadedFaceDetectionV6\)
96 echo
97
98 read -r opticalPath
99
100 echo
101 echo Specify path to which data should be saved
102 echo for flash drive, use /media/pi/DRIVENAME
103 echo
104
105 read -r mediaPath
106
107 echo
108 read -r -p "remember these settings? [y/n] " remember
109 echo
110
111 case "$remember" in
112 [yY][eE][sS]|[yY])
113 echo Saving to file...
114 echo "remember=y" | sudo tee launcherSettings.txt
115 echo "opticalPath=$opticalPath" | sudo tee -a launcherSettings.txt
116 echo "thermalPath=$thermalPath" | sudo tee -a launcherSettings.txt
117 echo "mediaPath=$mediaPath" | sudo tee -a launcherSettings.txt
118 ;;
119 *)
120 echo "remember=n" | sudo tee launcherSettings.txt
121 echo Settings not remembered.
122 ;;
123 esac
124
125
126 fi
127 fi
128
129 #initiate thermal camera
130 echo
131 echo Beginning thermal camera...
132 echo
133
134 x-terminal-emulator -e "cd $thermalPath; ./seek_viewer -m[file]"
135
136 #Initiate script for optical camera and analysis. Both this and the thermal camera
137 #program can be ended with CTRL + C
138 echo Beginning Python Script...
139 echo
140 echo Use CTRL + C to end script
141 echo
142
143 python $opticalPath/SingleThreadedFaceDetectionV6.py
144
145 wait
146
147 echo creating file structure...
148
149 sudo mkdir -v -p $mediaPath/trials
150
151 #make numbered trial folder at the smallest unused number
152 echo testing for unused directory name...
153
154 n=0
155 found=0
156
157 while [ $found -eq 0 ];
158 do
159 if test -d "$mediapath/trials/trial$n";
160
161 then
162
163 echo Folder \"trial$n\" is taken.
164
165 ((n+=1))
166
167 else
168
169 echo found free space at folder $n
170 #make subdirectories
171 sudo mkdir -v -p $mediaPath/trials/trial$n/Thermal
172 sudo mkdir -v -p $mediaPath/trials/trial$n/Optical
173 #move photos and trial data to respective directories (may take a while)
174 echo moving thermal photos...
175 sudo mv -i $thermalPath/*.jpeg $mediaPath/trials/trial$n/Thermal
176 sudo mv -i $thermalPath/oldImages/*.jpeg $mediaPath/trials/trial$n/Thermal
177 echo moving optical photos...
178 sudo mv -i $opticalPath/*.jpeg $mediaPath/trials/trial$n/Optical
179 echo moving metadata...
180 sudo mv -i $opticalPath/avgValues.txt $mediaPath/trials/trial$n
181 echo move complete. Rerun launcher.sh to take another trial or eject media to run MATLAB code on PC
182
183 found=1
184
185 fi
186
187 done
188
189 echo Filing data from trial under folder \"$mediapath/trials/trial$n\"
答え1
このサンプルをファイルに入れて繰り返し実行してみてください。古いディレクトリを削除すると、次回実行時に再利用されます。
#!/bin/bash
#
base='trials' # Base directory where everything lives
prefix='trial' # Prefix of subdirectory name
n=0 # Starting suffix number
mkdir -p "$base"
while [ -d "$base/$prefix$n" ]; do ((n++)); done
echo "Will create and use $base/$prefix$n"
mkdir "$base/$prefix$n"
生成されたディレクトリは、数値の昇順でリストされません。ディレクトリ数に上限がある場合は、数字の前にゼロを付けることができます（例：4ではなく0004）。
プロダクションコードでは、ここで行ったように変数を二重引用符で囲むことを忘れないでください。これにより、シェルがその単語を別の単語に拡張しようとするのを防ぎます。