Windows findstr /v (invert) equivalent in Linux
Outputs a file with lines in reverse order — last line first. The name is 'cat' backwards.
findstr /v (invert)
tac
tac
tac
Overview
What this command does
On Windows, "findstr /v (invert)" is used to print file in reverse line order. On Linux, the closest practical mapping shown here is "tac". Outputs a file with lines in reverse order — last line first. The name is 'cat' backwards. This reference is grouped under Text Processing.
Windows → Linux context
What changes when you use this on Linux?
Equivalent task, different tool
Windows findstr /v (invert) maps to tac for this task. Treat this as a workflow mapping rather than a character-for-character syntax translation.
Portable across the compared distros
The Debian/Ubuntu, Fedora and Arch rows use the same command in this mapping. Package availability or defaults can still vary, so check the installed tool version when an option behaves differently.
For the broader concept behind this mapping, read Linux command-line basics.
Practical tasks
Common use cases
Print file in reverse line order
Outputs a file with lines in reverse order — last line first. The name is 'cat' backwards.
tac file.txt
Print file with last line first
tac file | head -20
Last 20 lines in chronological order
tac file | grep pattern
Search from the bottom up
Ready to run
Copyable Linux commands
Review paths, device names, package names and permissions before running any command.
tac /var/log/syslog
tac access.log | head -50
Walkthrough
Examples with explanations
# No direct Windows equivalent
tac /var/log/syslog # newest entries first
tac access.log | head -50 # last 50, most recent firstReference
Common options and variations
| Command or option | Use |
|---|---|
tac file.txt | Print file with last line first |
tac file | head -20 | Last 20 lines in chronological order |
tac file | grep pattern | Search from the bottom up |
Distro differences
Debian/Ubuntu vs Fedora vs Arch
Debian/Ubuntu, Fedora and Arch all use "tac" for this mapping. The command syntax shown here is portable across the three rows, although installed versions and system defaults can still vary.
| Distribution | Package manager / base | Equivalent command | Difference to notice |
|---|---|---|---|
| Debian/Ubuntu | same command | tac |
Same command on this distribution. |
| Fedora | same command | tac |
Same command on this distribution. |
| Arch | same command | tac |
Same command on this distribution. |
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