【shell脚本进阶】几个常用的shell进阶脚本

博主经常在工作中使用shell脚本，有些流程比较单一但是由很有规律的操作，往往就是脚本使用的最佳应用场景。

虽然在当下python脚本已经非常的普及了，初入行的朋友可能一想到“脚本”，就只想到“python脚本”。但对于我这个“行业老饼”，shell脚本却还是有一席之地的，毕竟在我们入行那会，还真没python什么事！

本文呢，主要是给大家介绍几个我在工作中常用的，但又非常有用且操作高效的脚本，感兴趣的可以往下一看。

一、搜索想要的C文件并拷贝到一个指定的目录

这个案例很有用，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$ 

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

二、编译链接的时候把所有的object文件输出一行

这是一个真实的应用场景，我就经常遇到，我一般是这样操作：

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$ 

关键脚本命令：find . -name *.o | xargs echo -n

三、查看当前目录下所有C文件的大小

这个也应经常用的，见案例操作：

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

关键脚本命令：find . -name *.c | xargs ls -alh

四、把几个文本文件按顺序拼接起来

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$ 

关键脚本命令：cat 1.txt 2.txt 3.txt > all.txt

以上几个常用的脚本操作，你都学会了吗？欢迎讨论。