Print usage on stderr for coreutils and suppress broken pipe errors for cat.#7907
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fnordahl wants to merge 2 commits intouutils:mainfrom
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Print usage on stderr for coreutils and suppress broken pipe errors for cat.#7907fnordahl wants to merge 2 commits intouutils:mainfrom
fnordahl wants to merge 2 commits intouutils:mainfrom
Conversation
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GNU testsuite comparison: |
Scripts exist that may call one of the multi-binary entry points with argument 0 set to some other value than the name of the entry point. One example is the Open vSwitch testsuite which makes use of /bin/true as an argument to the bash builtin `exec` to check whether it supports the '-a' argument [0]. In this situation coreutils will print usage on standard output, which makes unnecessary noise. Printing usage on standard error, which is customary for other tools, allows the script to succeed. 0: https://github.com/openvswitch/ovs/blob/28064e9fa50d/tests/ovs-macros.at#L199 Signed-off-by: Frode Nordahl <fnordahl@ubuntu.com>
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GNU testsuite comparison: |
At present, the `cat` command unexpectedly prints an error message when it receives a broken pipe error. As an example, there are many workflows that make use of `cat` and `head` together to process only part of the data. The `head` command will stop reading after a configured number of bytes or lines, subsequently exposing `cat` to a broken pipe condition. Said workflows may fail when they unexpectedly get error messages in their output. Suppress broken pipe errors. Signed-off-by: Frode Nordahl <fnordahl@ubuntu.com>
Contributor
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Please split the two commits in 2 different pr |
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GNU testsuite comparison: |
Author
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Split into #7920 and #7921 as requested by @sylvestre. |
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Please review/merge commit by commit.