field_just - Linux
Overview
field_just is a versatile command-line tool for aligning, justifying, and otherwise manipulating text fields. It is commonly used for formatting tabular data, aligning output for visual clarity, and preparing text for different purposes.
Syntax
field_just [options] [parameters] filename
Options/Flags
| Option | Description | Default |
|—|—|—|
| -a, --align | Alignment: left, right, center | left |
| -c, --columns | Number of columns | 1 |
| -d, --delimiter | Field delimiter | Space |
| -f, --format | Output format: raw, table | table |
| -h, --help | Display help information | – |
| -i, --indent | Indentation before each line | 0 |
| -j, --justify | Justification: left, right, center, full | left |
| -l, --lines | Number of lines | 1 |
| -n, --number | Add line numbers | false |
| -s, --separator | Column separator | Pipe (|) |
| -t, --trim | Trim leading and trailing whitespace | false |
| -w, --width | Column width | 10 |
Examples
Align text to the right:
field_just -a right filename.txt
Create a table from a delimited file:
field_just -d ',' -f table filename.csv
Justify text in the center:
field_just -j center filename.txt
Trim leading whitespace and add line numbers:
field_just -t -n filename.txt
Common Issues
- Empty or nonexistent file: Ensure that the provided file exists and contains data.
- Incorrect alignment or justification: Check the specified alignment or justification options.
- Mismatched number of columns and lines: Adjust the
-cand-lparameters to match the actual data.
Integration
Pipe output to other commands:
field_just -f raw filename.txt | sort
Use as part of a script:
#!/bin/bash
# Extract specific columns from a CSV file
field_just -d ',' -c 2,4 filename.csv
Related Commands
columncutpastesed