CUT Command

 Cut commands work on columns .

$ cut -c1-25 data.txt             // c- character 1- 25 is printed out
Name    Phone   Email   City
firstman    9800909000  f
Sreejith        7898980090      sree
Sreejith        7898980090      sree
Sreejith        7898980090      sree
Sreejith        7898980090      sree
Sreejith        7898980090      sree
Sreejith        7898980090      sree
Sreejith        7898980090      sree


Comments

Post a Comment

Popular posts from this blog

Ping a Google logo

 #!/bin/bash # Define the URL for the Google logo URL="https://www.google.com/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png" # Function to ping the URL ping_url() {   echo "Pinging $URL"   curl -s -o /dev/null -w "%{http_code}\n" "$URL" } # Infinite loop to ping at different intervals while true; do   # Ping the URL   ping_url      # Wait for 5 minutes   echo "Waiting for 5 minutes..."   sleep 300      # Ping the URL   ping_url      # Wait for 10 minutes   echo "Waiting for 10 minutes..."   sleep 600      # Ping the URL   ping_url      # Wait for 15 minutes   echo "Waiting for 15 minutes..."   sleep 900 done
Read more

CURL Commands

Flag Description -A, --user-agent <string> Specifies the User-Agent string to send to the server. -b, --cookie <data> Sends cookies to the server. Can be a string or a file name. -c, --cookie-jar <file> Writes cookies to the specified file after the transfer. -d, --data <data> Sends data in a POST request. Can be used with application/x-www-form-urlencoded or application/json (with -H ). -F, --form <name=content> Submits form data. Useful for file uploads and multipart forms. -G, --get Forces curl to use the GET method instead of POST when -d is used. -H, --header <header> Adds a custom header to the request. Multiple h...
Read more

$$$$ Symbols in shell scripting

  Special Variable Description $# Number of positional parameters (arguments) passed to the script. $? Exit status of the last executed command. A value of 0 usually indicates success, and any non-zero value indicates an error. $0 The name of the script or command that is being executed. $1 , $2 , ... The first, second, and subsequent positional parameters passed to the script. $1 is the first argument, $2 is the second, and so on. $* All the positional parameters passed to the script, treated as a single word. "$@" All the positional parameters passed to the script, treated as separate words. This preserves each parameter as a distinct word, even if they contain spaces. ...
Read more