Commands by XtCrAvE (0)

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Show crontabs for all users
added echo "### Crontabs for $user ####"; to make clear whose crontab is listed.

Ping xxx.xxx.xxx.xxx ip 100000 times with size 1024bytes

Print line immediately before a matching regex.
Use this if you don't have access to GNU grep's -B option.

count processes with status "D" uninterruptible sleep

Selecting a random file/folder of a folder
Also looks in subfolders

renames multiple files that match the pattern
Useful when you want to quickly rename a bunch of files.

Remove color codes (special characters) with sed
Removes ANSI color and end of line codes to the [{attr1};...;{attrn}m format.

Get AWS temporary credentials ready to export based on a MFA virtual appliance
You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

"at" command w/o the resource usage/competition issues
EXAMPLES jb "next sun 12pm" "/bin/sh ~you/1.sh" & jb "2010-08-29 12:00:00" "~you/1.sh" & jb "29aug2010 gmt" ". ~you/1.sh" & jb 12:00p.m. "nohup ./1.sh" & jb 1min "echo stop!" & SEE ALSO parsedate(3) strftime(3)

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