WebJun 11, 2015 · Bash's man page mentions there's two ways to redirect stderr and stdout : &> file and >& file. Now, notice that it says both stderr and stdout. In case of this >file 2>&1 we are doing redirection of stdout (1) to file, but then also telling stderr (2) to be redirected to the same place as stdout ! WebThis construct allows both the standard output (file descriptor 1) and the standard error output (file descriptor 2) to be redirected to the file whose name is the expansion of word . There are two formats for redirecting standard output and standard error: &> word and >& word Of the two forms, the first is preferred.
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WebJan 7, 2009 · ambiguous redirect i have following statement in the script echo -e "$str_XML_col_name:$str_field_type;" >> $i_DC_Key_$i_Tgt_DC_key_Schema here $i_DC_Key is DC key and $i_Tgt_DC_key are the variables............... when i ran the script i am getting error rec_merge.sh: $i_DC_Key_$i_Tgt_DC_key_Schema:... Login or … WebMar 27, 2014 · In the Bourne shell, you might say: echo "$0: cannot find $file" 1>&2 but in the csh, you can't redirect stdout out stderr, so you end up doing something silly like this: sh -c 'echo "$0: cannot find $file" 1>&2' 1b. Reading Files In the csh, all you've got is $<, which reads a line from your tty. What if you've redirected stdin? cwr admissions
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WebFeb 7, 2016 · Posts: 125. Rep: But for the sake actually answering the question, from the man page. The shell cannot presently redirect diagnostic output. without also redirecting standard output, but ` (command >. output-file) >& error-file' is often an acceptable. workaround. Either output-file or error-file may be. `/dev/tty' to send output to the terminal. WebRedirect output to an external program The syntax for redirecting the output of a XSH command to an external program, is xsh-command shell-command ; , where xsh … WebOct 22, 2024 · This says to redirect stdout (file descriptor 1). Normally, we redirect to a file. However, we can use >& to redirect to stdout (file descriptor 1) or stderr (file descriptor 2) instead. Therefore, to redirect stdout (file descriptor 1) to stderr (file descriptor 2), you can use >&2. For more information: File descriptor (Computer Hope) cwr acronym