10 Xargs Command Examples in Linux / UNIX
The xargs command is extremely useful when we combine it with other commands. This tutorials explains the usage of xargs command using few simple examples. These example will help you understand the basics of how xargs command works. But, once you understand these concepts, you can come-up with your own clever examples of xargs to solve various command line problems. Syntax of xargs (from the man
Beyond grep: ack 2.12, a source code search tool for programmers
ack is a grep-like source code search tool. The latest version of ack is v3.9.0, released 2025-05-26. Changelog for v3.9.0 Designed for programmers with large heterogeneous trees of source code, ack is written in portable Perl 5 and takes advantage of the power of Perl's regular expressions. What's new in ack? New boolean options --and, --or and --not The new repeatable --and, --or and --not optio
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If you need to see a list of the reboots of your system with date and time stamps then on a Linux with systemd you can use (as non-root) the command: journalctl --list-boots This could be useful if you are trying to track when a power outage occurred. An alternative is: /bin/sudo grep "^-" /var/log/boot.log ^ This only shows the boot start date/times while the journalctl command shows a "LAST ENTR
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