phpman > man > sg(1)

Che Dong

⚡ TLDR: sg (tldr-pages)

Ast-grep is a tool for code structural search, lint, and rewriting.

Scan for possible queries using interactive mode
sg scan --interactive
Rewrite code in the current directory using patterns
sg run --pattern '{{foo}}' --rewrite '{{bar}}' --lang {{python}}
Visualize possible changes without applying them
sg run --pattern '{{useState<number>($A)}}' --rewrite '{{useState($A)}}' --lang {{typescript}}
Output results as JSON, extract information using `jq` and interactively view it using `jless`
sg run --pattern '{{Some($A)}}' --rewrite '{{None}}' --json | jq '{{.[].replacement}}' | jless

SG(1)                                       User Commands                                      SG(1)



NAME
       sg - execute command as different group ID

SYNOPSIS
       sg [-] [group [-c ] command]

DESCRIPTION
       The sg command works similar to newgrp but accepts a command. The command will be executed
       with the /bin/sh shell. With most shells you may run sg from, you need to enclose multi-word
       commands in quotes. Another difference between newgrp and sg is that some shells treat newgrp
       specially, replacing themselves with a new instance of a shell that newgrp creates. This
       doesn't happen with sg, so upon exit from a sg command you are returned to your previous
       group ID.

CONFIGURATION
       The following configuration variables in /etc/login.defs change the behavior of this tool:

       SYSLOG_SG_ENAB (boolean)
           Enable "syslog" logging of sg activity.

FILES
       /etc/passwd
           User account information.

       /etc/shadow
           Secure user account information.

       /etc/group
           Group account information.

       /etc/gshadow
           Secure group account information.

SEE ALSO
       id(1), login(1), newgrp(1), su(1), gpasswd(1), group(5), gshadow(5).



shadow-utils 4.8.1                           02/06/2024                                        SG(1)

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