Differences

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--- linux_wiki:use_input-output_redirection [2016/02/28 22:48]
billdozor created
+++ linux_wiki:use_input-output_redirection [2019/05/25 23:50] (current)
@@ Line 7: / Line 7: @@
 ----
-**> Redirect standard output to a file, overwrite contents**
+'>' Redirect standard output to a file, overwrite contents
 <code bash>
 cat /etc/system-release > info.txt
 </code>
-**>> Redirect standard output to file, append to file**
+\\
+'>>' Redirect standard output to file, append to file
 <code bash>
 tail /etc/passwd >> info.txt
 </code>
-**| Piping output to other commands**
+\\
+'|' Piping output to other commands
 <code bash>
 cat /etc/passwd | wc -l
 </code>
-Count the number of lines in /etc/passwd
+  * Counts the number of lines in /etc/passwd
-**2> Redirect standard error**
+\\
+'2>' Redirect standard error
 <code bash>
 ssh admin@webserver01.com "uptime" 2>/dev/null
 </code>
-SSH to webserver01.com, issue the uptime command, send standard errors to /dev/null (to nowhere)
+  * SSH to webserver01.com, issue the uptime command, send standard errors to /dev/null (to nowhere)
-**Redirect both standard error and standard output**
+\\
+Redirect both standard error and standard output
 <code bash>
 ssh admin@webserver01.com "uptime" &> results.log
 </code>
-**Redirect standard error to standard out**
+\\
+Redirect standard error to standard out
 <code bash>
 cat /etc/system-release /etc/Red 2>&1 | grep Red
 </code>
-Standard output can be passed through a pipe to the next command. By redirecting standard error to standard output, any error messages are successfully sent through as well.
+  * Standard output can be passed through a pipe to the next command. By redirecting standard error to standard output, any error messages are successfully sent through as well.
 ----