why can't I use $1 in .cshrc ?
I am trying to use this alias in my root .cshrc file: grep $1 /some/file but .cshrc _refuses_ to expand $1 as a proper variable (in this case, the first argument to the alias...) I _think_ it's because $1 is being interpreted as a argument to csh _itself_ when it runs .cshrc ... but maybe I'm wrong. Anyway, how to make it work ? Thanks. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: why can't I use $1 in .cshrc ?
At 07:04 AM 6/26/2008, Juri Mianovich wrote: I am trying to use this alias in my root .cshrc file: grep $1 /some/file but .cshrc _refuses_ to expand $1 as a proper variable (in this case, the first argument to the alias...) I _think_ it's because $1 is being interpreted as a argument to csh _itself_ when it runs .cshrc ... but maybe I'm wrong. Anyway, how to make it work ? Thanks. I think you are trying to use an alias where it won't really work. A typical alias is: la for ls -a ll for ls -lA It looks like you want to pass an argument and a filename, or at least an argument to grep. Not quite sure if that would work or if it would be much use. The $ is a special character that is interpreted and expanded by the shell. You can use it by escaping it or putting it in quotes, but that depends on where it is used (in .cshrc, in a script, etc.) -Derek -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: why can't I use $1 in .cshrc ?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Juri Mianovich wrote: | I am trying to use this alias in my root .cshrc file: | | grep $1 /some/file | | but .cshrc _refuses_ to expand $1 as a proper variable (in this case, the first argument to the alias...) | | I _think_ it's because $1 is being interpreted as a argument to csh _itself_ when it runs .cshrc ... but maybe I'm wrong. | | Anyway, how to make it work ? Try with \!\!:1 Example: alias say echo 'I say \!\!:1' | say hello I say hello | | Thanks. You're welcome. - -- Pietro Cerutti [EMAIL PROTECTED] PGP Public Key: http://gahr.ch/pgp -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.9 (FreeBSD) iEYEAREKAAYFAkhjqFkACgkQwMJqmJVx944z4QCeKf5wirL9TOqAy0QhyUt7f0mE /2AAoJB1nkUYSfd4/QEdmJUEENaUsA12 =zK3x -END PGP SIGNATURE- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: why can't I use $1 in .cshrc ?
At 2008-06-26T05:04:52-07:00, Juri Mianovich wrote: I am trying to use this alias in my root .cshrc file: grep $1 /some/file but .cshrc _refuses_ to expand $1 as a proper variable (in this case, the first argument to the alias...) I _think_ it's because $1 is being interpreted as a argument to csh _itself_ when it runs .cshrc ... but maybe I'm wrong. Anyway, how to make it work ? See the tcsh(1) section `Alias substitution': If the alias contains a history reference, it undergoes History substitution (q.v.) as though the original command were the previous input line. [riemann:/home/raghu]% alias foo grep \!^ /etc/passwd [riemann:/home/raghu]% foo toor toor:*:0:0:Bourne-again Superuser:/root: [riemann:/home/raghu]% alias bar grep \!:1 \!:2 [riemann:/home/raghu]% bar '^man' /etc/passwd man:*:9:9:Mister Man Pages:/usr/share/man:/usr/sbin/nologin HTH, Raghavendra. -- N. Raghavendra [EMAIL PROTECTED] | http://www.retrotexts.net/ Harish-Chandra Research Institute | http://www.mri.ernet.in/ See message headers for contact and OpenPGP information. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
