gencat - Linux
Overview
Gencat is a powerful utility for concatenating files, combining multiple text files into a single output. It is primarily used to merge separate text sources into a larger, comprehensive document or dataset.
Syntax
gencat [-h] [-n] [-s SEP] [-d DELIM] <files>...
Options/Flags
-h, --help
: Display help and usage information.-n, --number-lines
: Prefix each output line with its corresponding line number.-s, --separator=SEP
: Specify the separator to be placed between file contents (default: newline).-d, --delimiter=DELIM
: Separate files in the output using the specified delimiter (default: empty string).
Examples
- Merge two files,
file1.txt
andfile2.txt
, with a colon as a separator:
gencat -s ":" file1.txt file2.txt
- Concatenate multiple files with line numbers:
gencat -n file1.txt file2.txt file3.txt
- Combine files with a custom delimiter:
gencat -d "===" file1.txt file2.txt
Common Issues
- Ensure input files exist and are readable.
- Incorrectly specified delimiter or separator may result in unexpected output.
- Large file concatenation can potentially slow down the system.
Integration
Gencat can be used in combination with other commands for advanced tasks:
- Pipe output into another command for further processing:
gencat file1.txt file2.txt | sort
- Use scripts to automate file concatenation:
#!/bin/bash
for file in *.txt; do
gencat -n $file >> output.txt
done
Related Commands
- cat: Concatenate files without additional features.
- more: Display file contents in a paginated format.
- uniq: Remove duplicate lines from a file.