Linux Shell Script Essentials for DevOps | AWK | Regular Expressions | Boot Process | cksum Tutorial

Linux Shell Script Essentials for DevOps | AWK | Regular Expressions | Boot Process | cksum Tutorial #linuxtutorials #linuxandshelltutorials Why case statement is used Why sed is used how do we define a function how do we call a function how do we delete a file using sed AWK Command - extract the rows or column from output Regular Experessions --------------------- * - match 0 or more occurances ^ -carrot / begining of line $ - ending ? - single charecter Boot Process --------------- post bios mbr - master boot record boot loader kernal /etc/inittab who -r -- run level fsck -- file system check cd /a tar -cvf -- will compress all files zip/gzip -- reduce the size of file gzip -9 -- scp -- another machine gunzip -- tar -- xvf -- all 1000 files cksum -- to check the checksum cksum filename -- first name cksum filename -- --------------- /etc/ df -h -- /xyz installation of a package unix linux var = ’uname -na | cut -f1 -d“ “ ’ if [ $ var == Linux] then ---- else ------ fi awk command bash,awk command examples,awk command geeksforgeeks,awk command in linux,awk command in linux tutorial,awk command in shell script,awk command in unix,awk command in unix with examples,awk command line,awk command linux,awk command linux tutorial,awk command mac,awk command shell,awk command to extract a column,awk command to read csv file,awk command to split a file,awk command tutorial,awk command tutorial in linux,awk command unix,awk command with examples,awk in shell scripting,awk shell scripting tutorial,boot process in linux,boot process in linux in detail,boot process in linux step by step,cksum command,cksum command in linux,cksum command tutorial,egrep regular expression cheat sheet,grep and awk command in linux,grep sed awk command unix,linux awk command example,linux regular expression ,linux regular expression cheat sheet,linux regular expression tutorial,linux sed regular expression,regular expression in shell script if condition,regular expressions in shell script,shell awk tutorial,unix awk command tutorial,use of awk command in linux,what is awk command in unix