Difference between revisions of "/dev/stderr"
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m (Welcome moved page Stderr to /dev/stderr) |
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| Line 2: | Line 2: | ||
[[wikipedia:stderr]] | [[wikipedia:stderr]] | ||
| − | * <code>2>&1</code> | + | * <code>2>[[&1]]</code> |
* <code>&></code> | * <code>&></code> | ||
* <code>[[sudo]] -S</code> or <code>[[sudo]] --stdin</code> | * <code>[[sudo]] -S</code> or <code>[[sudo]] --stdin</code> | ||
| − | + | * <code>2>[[/dev/null]]</code> | |
| + | |||
| + | |||
| + | your-command-with-stdout-and-stderr 2>&1 | [[tee -a]] your file | ||
| + | |||
| + | |||
| + | |||
| + | |||
| + | * [[Google style guide]]: https://google.github.io/styleguide/shellguide.html#stdout-vs-stderr | ||
| + | err() { | ||
| + | echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2 | ||
| + | } | ||
| + | |||
| + | if ! do_something; then | ||
| + | [[err]] "Unable to do_something" | ||
| + | exit 1 | ||
| + | fi | ||
| + | |||
== Related == | == Related == | ||
* [[CKA: Manage container stdout & stderr logs]] | * [[CKA: Manage container stdout & stderr logs]] | ||
| + | * <code>[[gcloud]]</code> | ||
| + | * [[tee -a]] | ||
== See also == | == See also == | ||
* {{stdin}} | * {{stdin}} | ||
* {{logging}} | * {{logging}} | ||
| + | * {{shell}} | ||
[[Category:Linux]] | [[Category:Linux]] | ||
Latest revision as of 11:37, 15 February 2024
2>&1&>
your-command-with-stdout-and-stderr 2>&1 | tee -a your file
err() {
echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
}
if ! do_something; then
err "Unable to do_something"
exit 1
fi
Related[edit]
See also[edit]
- Standard streams:
/dev/stdin,/dev/stdout,/dev/stderr,/dev/null, File descriptor,set -x, 2>&1, stdbuf - Linux logging, Cisco IOS logging
- Shell: Fish shell,
sh,Bash,ksh,zsh,ash, PowerShell (Windows),/usr/bin/env,.hushlogin,dash,tcsh, Shell redirection,dquote, $SHELL, Google Cloud Shell, AWS CloudShell, explainshell.com, vmware_vm_shell, Nushell, Fig.io, direnv
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