Display environment vars only, using set

alias sete='set|sed -n "/^`declare -F|sed -n "s/^declare -f \(.*\)/\1 ()/p;q"`/q;p"'
Normally the bash builtin command 'set' displays all vars and functions. This just shows the vars. Useful if you want to see different output then env or declare or export. Alias 'sete' shows sets variables alias sete='set|sed -n "/^`declare -F|sed -n "s/^declare -f \(.*\)/\1 ()/p;q"`/q;p"' Alias setf shows the functions. alias setf='set|sed -n "/^`declare -F|sed -n "s/^declare -f \(.*\)/\1 ()/p;q"`/,\$p"' Also see: http://www.commandlinefu.com/commands/view/6899/print-all-environment-variables-including-hidden-ones At the very least, some cool sed commands! From my .bash_profile http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html
Sample Output
BASH=/bin/bash
BASH_ARGC=()
BASH_ARGV=()
BASH_LINENO=()
BASH_SOURCE=()
BASH_VERSINFO=([0]="3" [1]="2" [2]="25" [3]="1" [4]="release" [5]="i686-redhat-linux-gnu")
BASH_VERSION='3.2.25(1)-release'
BKDIR=/home/askapache/.bk
BROWSER=/usr/bin/lynx
COLORS=/home/askapache/.dircolors
COLUMNS=271
CR=$'\E[m\017\E)0'
CVS_RSH=ssh
DIRSTACK=()
EDITOR=/usr/bin/vim
EUID=32011
GREP_OPTIONS='-D skip --binary-files=without-match'
GROUPNAME=askapache
GROUPS=()

What Others Think

Just thinking how is this different from: env
b_t · 409 weeks and 5 days ago
OK, did not notice your work on 'setf' before. There seems no built-in alternative to 'setf' though.
b_t · 409 weeks and 5 days ago
It's much different than env, thats odd if sete and env are displaying the exact same environment. Thats because env is a command, usually in /bin/env or /usr/bin/env so it is executed like any other executable, by calling execve with the current environment, but not the bash environment, whereas set is a shell builtin which shows all the bash internal variables and the current executing environment of bash. For example, do a cat /proc/$$/environ On my machine, env does not show the following vars that sete shows: BASH BASH_ARGC BASH_ARGV BASH_LINENO BASH_SOURCE BASH_VERSINFO BASH_VERSION COLUMNS DIRSTACK EUID GROUPS HOSTTYPE IGNOREEOF INTERACTIVE LINES LOGIN_SHELL MACHTYPE MAILCHECK OPTERR OPTIND OSTYPE PPID PS2 PS3 PS4 SECONDS SHELLOPTS SOURCED UID But if you want to see ALL the hidden variables within bash, check out: http://www.commandlinefu.com/commands/view/6899/print-all-environment-variables-including-hidden-ones
AskApache · 409 weeks and 5 days ago
cat /proc/$$/environ vs: cat /proc/$PPID/environ or with strace you can compare: strace -v -f -e trace=execve /bin/env and stracing bash is harder, but: strace -v -f -e trace=execve /bin/bash -i -l -c 'set'
AskApache · 409 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands



Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: