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--- computer_science:linux:terminal:bash_line_pipes_and_redirection [2021/12/23 12:08] – created carlossousa
+++ computer_science:linux:terminal:bash_line_pipes_and_redirection [2023/12/01 12:07] (current) – external edit 127.0.0.1
@@ Line 2: / Line 2: @@
 Part of [[:computer_science:linux:linux|Linux]]
+<code>
+# default fds
+stdin
+stdout
+stderr
+# run program1, stdout/stderr to terminal (default)
+program1
+# send stdout from program1 to stdin of program2 with anonymous pipe
+program1 | program2
+# run program1, stdout to out.log, stderr to terminal
+program1 1> out.log
+program1> out.log
+# run program1, stdout/stderr to out.log, nothing to terminal
+program1 1> out.log 2> out.log
+program1> out.log 2> out.log
+program1> out.log 2>&1
+# run program1 with input.txt as input,
+# stdout/stderr to terminal
+program1 <input.txt
+cat input.txt | program1
+# run program1 with input.txt to stdin,
+# stdout to output.txt, stderr to terminal
+program1 <input.txt> output.txt
+cat input.txt | program1> output.txt
+# send stdout from program1 to stdin of program2 with named pipe
+mkfifo mypipe
+program1> mypipe
+program2 <mypipe
+# run program1, discard all output
+program1> /dev/null 2>&1
+</code>