diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2023-03-21 13:03:42 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2023-03-21 13:03:56 -0400 |
| commit | b0d8f2d983cb25d1035fae1cd7de214dd67809b4 (patch) | |
| tree | 765a0ea3579a960f3574a38e229338011b804e3a /src/bin/psql/help.c | |
| parent | 0f85db92b9ea167d3b9e90f3fb5fb3b9a93babc2 (diff) | |
Add SHELL_ERROR and SHELL_EXIT_CODE magic variables to psql.
These are set after a \! command or a backtick substitution.
SHELL_ERROR is just "true" for error (nonzero exit status) or "false"
for success, while SHELL_EXIT_CODE records the actual exit status
following standard shell/system(3) conventions.
Corey Huinker, reviewed by Maxim Orlov and myself
Discussion: https://postgr.es/m/CADkLM=cWao2x2f+UDw15W1JkVFr_bsxfstw=NGea7r9m4j-7rQ@mail.gmail.com
Diffstat (limited to 'src/bin/psql/help.c')
| -rw-r--r-- | src/bin/psql/help.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/bin/psql/help.c b/src/bin/psql/help.c index e45c4aaca5a..48fd51592aa 100644 --- a/src/bin/psql/help.c +++ b/src/bin/psql/help.c @@ -451,6 +451,10 @@ helpVariables(unsigned short int pager) HELP0(" SERVER_VERSION_NAME\n" " SERVER_VERSION_NUM\n" " server's version (in short string or numeric format)\n"); + HELP0(" SHELL_ERROR\n" + " true if the last shell command failed, false if it succeeded\n"); + HELP0(" SHELL_EXIT_CODE\n" + " exit status of the last shell command\n"); HELP0(" SHOW_ALL_RESULTS\n" " show all results of a combined query (\\;) instead of only the last\n"); HELP0(" SHOW_CONTEXT\n" |