woose/Using_Python_to_Interact_with_the_Operating_System
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

update

Browse Source
This commit is contained in:
Yavuz Sava 2025-01-31 23:45:33 +03:00
parent b2d1b97ff5
commit 959a406ece
1 changed files with 90 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

91
module6.ipynb
View File

@ -7,12 +7,101 @@
"# Interacting with the Command Line Shell"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Basic Linux Commands"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": []
"source": [
"mkdir mynewdir\n",
"cd mynewdir/\n",
"/mynewdir$ pwd\n",
"/mynewdir$ cp ../spider.txt .\n",
"/mynewdir$ touch myfile.txt\n",
"/mynewdir$ ls -l \n",
"#Output:\n",
"#-rw-rw-r-- 1 user user 0 Mai 22 14:22 myfile.txt\n",
"#-rw-rw-r-- 1 user user 192 Mai 22 14:18 spider.txt\n",
"/mynewdir$ ls -la\n",
"#Output:\n",
"#total 12\n",
"#drwxr-xr-x 2 user user 4096 Mai 22 14:17 .\n",
"#drwxr-xr-x 56 user user 12288 Mai 22 14:17 ..\n",
"#-rw-rw-r-- 1 user user 0 Mai 22 14:22 myfile.txt\n",
"#-rw-rw-r-- 1 user user 192 Mai 22 14:18 spider.txt\n",
"/mynewdir$ mv myfile.txt emptyfile.txt\n",
"/mynewdir$ cp spider.txt yetanotherfile.txt\n",
"/mynewdir$ ls -l\n",
"#Output:\n",
"#total 8\n",
"#-rw-rw-r-- 1 user user 0 Mai 22 14:22 emptyfile.txt\n",
"#-rw-rw-r-- 1 user user 192 Mai 22 14:18 spider.txt\n",
"#-rw-rw-r-- 1 user user 192 Mai 22 14:23 yetanotherfile.txt\n",
"/mynewdir$ rm *\n",
"/mynewdir$ ls -l\n",
"#total 0\n",
"/mynewdir$ cd ..\n",
"rmdir mynewdir/\n",
"ls mynewdir\n",
"#ls: cannot access 'mynewdir': No such file or directory\n",
"\n"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Redirecting streams"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"cat stdout_example.py \n",
"#!/usr/bin/env python3\n",
"print(\"Don't mind me, just a bit of text here...\")\n",
"./stdout_example.py \n",
"#Output: Don't mind me, just a bit of text here...\n",
"./stdout_example.py > new_file.txt\n",
"cat new_file.txt \n",
"#Output: Don't mind me, just a bit of text here...\n",
"./stdout_example.py >> new_file.txt\n",
"cat new_file.txt \n",
"#Output: Don't mind me, just a bit of text here...\n",
" #Don't mind me, just a bit of text here...\n",
"cat streams_err.py \n",
"#!/usr/bin/env python3\n",
"\n",
"data = input(\"This will come from STDIN: \")\n",
"print(\"Now we write it to STDOUT: \" + data)\n",
"raise ValueError(\"Now we generate an error to STDERR\")\n",
"./streams_err.py < new_file.txt\n",
"#This will come from STDIN: Now we write it to STDOUT: Don't mind #me, just a bit of text here...\n",
"#Traceback (most recent call last):\n",
" #File \"./streams_err.py\", line 5, in <module>\n",
" #raise ValueError(\"Now we generate an error to STDERR\")\n",
"#ValueError: Now we generate an error to STDERR\n",
"./streams_err.py < new_file.txt 2> error_file.txt\n",
"#This will come from STDIN: Now we write it to STDOUT: Don't mind #me, just a bit of text here...\n",
"cat error_file.txt \n",
"#Traceback (most recent call last):\n",
" #File \"./streams_err.py\", line 5, in <module>\n",
" #raise ValueError(\"Now we generate an error to STDERR\")\n",
"#ValueError: Now we generate an error to STDERR\n",
"echo \"These are the contents of the file\" > myamazingfile.txt\n",
"cat myamazingfile.txt \n",
"#These are the contents of the file\n"
]
}
],
"metadata": {