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Tutorial5: Redirection

16 bytes added, 12:22, 23 January 2020
Additional File Manipulation Commands
There are some additional regular file manipulation commands that you can use with redirection<br>(in addition to the other regular file manipulation commands introduced in week 2). These commands are displayed in the table below:
<table cellpadding="5"><tr><th style="border-bottom: 1px solid black;text-align:left;">Linux Command</th><th style="border-bottom: 1px solid black;text-align:left;">Purpose</th></tr><tr valign="top"><td>'''cut'''</td><td>Used to extract fields and characters from records. The option '''-c''' option is used to cut by a character or a range of characters. The '''-f''' option indicates the field number or field range to display (this may require using the '''-d''' option to indicate the field separator (delimiter).<br><br>''Examples:''<br><br>'''cut -f2 filename''' - extract 2nd field from all records in file, using tab as delimiter (default)<br><br>'''cut -d' ' -f2,5 filename''' - extract 2nd and 5th field, using space as delimiter<br><br>'''cut -d' ' -f1-3,5 filename''' - extract 1st through 3rd and 5th fields, using space as delimiter<br><br>'''cut -c3-5 filename''' - extract 3rd to 5th characters</td></tr><tr><td>'''tr'''</td><td>x</td></tr><tr><td>'''wc'''</td><td>x</td></tr></table>
===Piping (Using Pipes)===
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