Zero to Pass Interview: Shell Scripting
In this video we are going to learn about bash and shell scripting with hands on approach. Questions like what is bash script, how to run a bash script and how to write a bash script are answered. So roll up your sleeves and join in to review shell scripting.
Commands Covered:
ls – directory listing
ls -al – formatted listing with hidden files
cd dir - change directory to dir
cd – change to home
pwd – show current directory
mkdir dir – create a directory dir
rm file – delete file
rm -r dir – delete directory dir
rm -f file – force remove file
rm -rf dir – force remove directory dir with all files inside
cp file1 file2 – copy file1 to file2
cp -r dir1 dir2 – copy dir1 to dir2; create dir2 if it doesn't exist
mv file1 file2 – rename or move file1 to file2 if file2 is an existing directory, moves file1 into directory file2
touch file – create or update file
head file – output the first 10 lines of file
tail file – output the last 10 lines of file
tail -f file – output the contents of file as it grows, starting with the last 10 lines
ps – display your currently active processes
top – display all running processes
htop – nice graphical interface of top
chmod +x – make file executable
grep pattern files – search for pattern in files
grep -r pattern dir – search recursively for pattern in dir
command | grep pattern – search for pattern in the output of command
wget file – download file
piping and io redirection
Conditional Statement:
If [ x==q ]
then
echo yes
else
echo no
Udemy Free Shell Scripting Course:
https://www.udemy.com/course/linux-sh...
Linux Command Cheat Sheets:
https://appletree.or.kr/quick_referen...
https://files.fosswire.com/2007/08/fw...
General Cheat Sheet Website:
https://cheatography.com/
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