博主經常在工作中使用shell腳本，有些流程比較單一但是由很有規律的操作，往往就是腳本使用的最佳應用場景。

雖然在當下python腳本已經非常的普及了，初入行的朋友可能一想到“腳本”，就只想到“python腳本”。但對于我這個“行業老餅”，shell腳本卻還是有一席之地的，畢竟在我們入行那會，還真沒python什么事！

本文呢，主要是給大家介紹幾個我在工作中常用的，但又非常有用且操作高效的腳本，感興趣的可以往下一看。

一、搜索想要的C文件并拷貝到一個指定的目錄

這個案例很有用，我直接上操作指引：

recan@ubuntu:~/win_share_workspace/test_share$ find . -name *.c
./test_gcc/pass_array2_test.c
./test_gcc/test.c
./test_jd_paper_test/test.c
./test_python_gcc_map/main.c
./test_python_gcc_map/libf.c
./test_python_gcc_map/libd.c
./test_python_gcc_map/libe.c
./test_python_gcc_map/libb.c
./test_python_gcc_map/liba.c
./master_mode_sdk/app/bl2028n_linkkitapp/app_entry.c
./master_mode_sdk/app/tg7100c_linkkitapp/app_entry.c
./master_mode_sdk/app/sv6266_linkkitapp/app_entry.c
./jx_sdk_config/jx_sdk_config.c
./jx_sdk_config/cJSON.c
./jx_sdk_config/main.c
./test_coredump/test_cordump.c
./tcp_echo/tcp_server.c
./tcp_echo/tcp_client.c
./test_aligned_macro/main.c
./test_gcc_test/test.c
./test_for_loop/test.c
./test_bin2array/bin2array.c
./test_cli_for_linux/src/cli_dumpsys.c
./test_cli_for_linux/src/jx_os_cli.c
./test_cli_for_linux/src/cli_default_command.c
./test_cli_for_linux/src/cli.c
./test_cli_for_linux/src/cli_adapt.c
./test_cli_for_linux/tcp_server.c
./test_cli_for_linux/adapter_for_linux/main.c
./test_cli_for_linux/adapter_for_linux/uart.c
./test_cli_for_linux/adapter_for_linux/osal.c
./test_hexdump/test_hexdump.c
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ find . -name *.c | xargs -i cp -rf {} /tmp/test_share/
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ ls /tmp/test_share/
app_entry.c  cJSON.c      cli.c                  cli_dumpsys.c  jx_sdk_config.c  libb.c  libe.c  main.c  pass_array2_test.c  tcp_server.c  test_cordump.c  uart.c
bin2array.c  cli_adapt.c  cli_default_command.c  jx_os_cli.c    liba.c           libd.c  libf.c  osal.c  tcp_client.c        test.c        test_hexdump.c
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 

主要腳本命令：find . -name *.c | xargs -i cp -rf {} /tmp/test_share/

二、編譯鏈接的時候把所有的object文件輸出一行

這是一個真實的應用場景，我就經常遇到，我一般是這樣操作：

recan@ubuntu:~/win_share_workspace/test_share$ find . -name *.o
./test_makefile_paper/bar.o
./test_gcc_test/test.o
./test_for_loop/test.o
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ find . -name *.o | xargs echo -n
./test_makefile_paper/bar.o ./test_gcc_test/test.o ./test_for_loop/test.o
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 

關鍵腳本命令：find . -name *.o | xargs echo -n

三、查看當前目錄下所有C文件的大小

這個也應經常用的，見案例操作：

recan@ubuntu:~/win_share_workspace/test_share$ find . -name *.c | xargs ls -alh
-rwxr-xr-x 1 recan system  64K Jul 19  2021 ./jx_sdk_config/cJSON.c
-rwxr-xr-x 1 recan system 6.6K Jul 22  2021 ./jx_sdk_config/jx_sdk_config.c
-rwxr-xr-x 1 recan system  472 Jul 21  2021 ./jx_sdk_config/main.c
-rwxr-xr-x 1 recan recan     0 Jul 12  2021 ./master_mode_sdk/app/bl2028n_linkkitapp/app_entry.c
-rwxr-xr-x 1 recan recan     0 Jul 12  2021 ./master_mode_sdk/app/sv6266_linkkitapp/app_entry.c
-rwxr-xr-x 1 recan recan     0 Jul 12  2021 ./master_mode_sdk/app/tg7100c_linkkitapp/app_entry.c
-rwxr-xr-x 1 recan recan  5.3K Jan 15  2022 ./tcp_echo/tcp_client.c
-rwxr-xr-x 1 recan recan  6.9K Jan 15  2022 ./tcp_echo/tcp_server.c
-rw-r--r-- 1 recan recan  1.1K Aug  4  2021 ./test_aligned_macro/main.c
-rwx------ 1 recan system 1.9K Aug 24  2021 ./test_bin2array/bin2array.c
-rwx------ 1 recan system 1.3K Jan 16  2022 ./test_cli_for_linux/adapter_for_linux/main.c
-rwx------ 1 recan system  857 Jan 15  2022 ./test_cli_for_linux/adapter_for_linux/osal.c
-rwx------ 1 recan system 1.4K Jan 15  2022 ./test_cli_for_linux/adapter_for_linux/uart.c
-rwx------ 1 recan system 2.1K Jan 15  2022 ./test_cli_for_linux/src/cli_adapt.c
-rwx------ 1 recan system  27K Jan 15  2022 ./test_cli_for_linux/src/cli.c
-rwx------ 1 recan system 8.0K Nov  9  2021 ./test_cli_for_linux/src/cli_default_command.c
-rwx------ 1 recan system 1.3K Nov  9  2021 ./test_cli_for_linux/src/cli_dumpsys.c
-rwx------ 1 recan system 1.6K Dec 13  2021 ./test_cli_for_linux/src/jx_os_cli.c
-rwxr-xr-x 1 recan system 9.1K Jan 16  2022 ./test_cli_for_linux/tcp_server.c
-rwx------ 1 recan system  626 Aug 18  2021 ./test_coredump/test_cordump.c
-rw-r--r-- 1 recan system  768 Jan 27  2022 ./test_for_loop/test.c
-rw-r--r-- 1 recan system  817 Sep  7  2021 ./test_gcc/pass_array2_test.c
-rwxr-xr-x 1 recan recan   233 Jul  6  2021 ./test_gcc/test.c
-rw-r--r-- 1 recan recan    87 Jun 11  2021 ./test_gcc_test/test.c
-rwx------ 1 recan system 1.8K Sep  8  2021 ./test_hexdump/test_hexdump.c
-rwx------ 1 recan system 1.7K Aug 31  2021 ./test_jd_paper_test/test.c
-rw-r--r-- 1 recan system  225 Aug 31  2021 ./test_python_gcc_map/liba.c
-rw-r--r-- 1 recan system  225 Aug 31  2021 ./test_python_gcc_map/libb.c
-rw-r--r-- 1 recan system  225 Aug 31  2021 ./test_python_gcc_map/libd.c
-rw-r--r-- 1 recan system  225 Aug 31  2021 ./test_python_gcc_map/libe.c
-rw-r--r-- 1 recan system  225 Aug 31  2021 ./test_python_gcc_map/libf.c
-rw-r--r-- 1 recan system  492 Aug 31  2021 ./test_python_gcc_map/main.c

關鍵腳本命令：find . -name *.c | xargs ls -alh

四、把幾個文本文件按順序拼接起來

recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ echo 111111 > 1.txt
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ echo 222222 > 2.txt
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ echo 333333 > 3.txt
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ cat 1.txt 2.txt 3.txt > all.txt
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ 
recan@ubuntu:~/win_share_workspace/test_share$ cat all.txt 
111111
222222
333333
recan@ubuntu:~/win_share_workspace/test_share$ 

關鍵腳本命令：cat 1.txt 2.txt 3.txt > all.txt

以上幾個常用的腳本操作，你都學會了嗎？歡迎討論。